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This America's Test Kitchen zucchini bread recipe delivers the perfect balance of moist crumb and tender sweetness without that dreaded dryness. I've baked through countless variations, and this method—with its precise ingredient ratios and baking technique—ensures a loaf that stays fresh for days.
The secret lies in proper zucchini preparation and a touch of brown sugar that enhances moisture retention.
The recipe begins with grated zucchini that's been thoroughly drained to prevent a gummy texture, then folded into a rich batter of flour, eggs, and butter. A golden-brown crust develops as it bakes, while the interior remains soft and tender.
The addition of cinnamon and nutmeg adds warmth without overpowering the natural sweetness of the zucchini.
What sets this apart is the foolproof baking time—no guesswork about doneness. The loaf emerges with just the right amount of caramelization on top, while the interior stays moist enough to slice cleanly.
Whether you prefer it plain or with chocolate chips swirled throughout, this recipe delivers consistent results every time.
Perfect for breakfast, snacks, or gifts, this zucchini bread keeps well for up to five days when stored properly. The recipe also includes optional variations like adding walnuts or a cream cheese glaze for extra indulgence. Let's get baking with this reliable, time-tested method.
Ingredients for america's test kitchen zucchini bread
Precision meets simplicity in these carefully measured ingredients for zucchini bread that stays moist for days.
| Ingredient | Amount | Notes |
|---|---|---|
| All-Purpose Flour 🌾 | 2 cups | Sifted for light texture |
| Granulated Sugar 🍚 | ¾ cup | White sugar preferred |
| Light Brown Sugar 🍚 | ¼ cup | Packed for moisture retention |
| Unsalted Butter 🧈 | ¾ cup | Room temperature for creaming |
| Large Eggs 🥚 | 2 whole | Room temperature for even baking |
| Medium Zucchini 🥒 | 2 whole | Grated and drained thoroughly |
| Ground Cinnamon 🌿 | 1 ½ tsp | Freshly ground for warmth |
| Ground Nutmeg 🌿 | ¼ tsp | Freshly grated preferred |
| Baking Soda 🧂 | 1 tsp | Ensures proper rise |
| Salt 🧂 | ½ tsp | Diamond Crystal preferred |
| Vanilla Extract 🌸 | 1 tsp | Pure vanilla for authentic flavor |
| Semisweet Chocolate Chips 🍫 | 1 cup | Optional for swirls |
The zucchini preparation is non-negotiable—grate it finely and drain it for 10 minutes in a colander lined with paper towels. This removes excess moisture that causes gummy texture. For the flour, King Arthur or Gold Medal brands yield the best results due to their protein balance. The brown sugar's moisture-retaining properties are key, so pack it firmly into the measuring cup. Unsalted butter ensures you control the saltiness, and room temperature is crucial—soft but not melted. Eggs should be at room temperature too, as cold eggs can cause uneven baking. For the spices, Penzeys or bulk bins at specialty stores provide the freshest ground cinnamon and nutmeg.
No vanilla extract? Vanilla bean paste works equally well, or a splash of bourbon adds depth. Substitute chocolate chips with chopped walnuts or pecans for a nutty twist. If you prefer a sweeter loaf, increase the granulated sugar by 2 tablespoons. For a gluten-free version, swap the all-purpose flour for a 1:1 gluten-free baking flour blend. The baking soda is essential—don't substitute baking powder—as it reacts with the acidity in the zucchini and brown sugar. If your zucchini is particularly watery, add an extra tablespoon of flour to absorb moisture. The butter should be creamy but not greasy when mixed—this ensures proper aeration.
Store the baked loaf in an airtight container at room temperature for up to 3 days or refrigerate for 5 days. For longer storage, wrap tightly in plastic and freeze for up to 3 months. To reheat, wrap a slice in a damp paper towel and microwave for 10-15 seconds. The bread freezes best when fully cooled—slice before freezing for easy single-serving portions. If the loaf dries out, spritz with water and warm in a 200°F oven for 5 minutes to restore moisture. The chocolate chips, if used, should be folded gently into the batter to avoid overmixing, which can make the bread dense.
Why You'll Love This Recipe
- No-Mess Mix-Ins: I swear by this recipe’s secret weapon—grated zucchini blends right into the batter without that dreaded "soggy loaf" texture. Just shred, squeeze out the moisture, and fold it in with the butter and eggs. No measuring cups, no extra bowls, just pure convenience.
- Buttery Sweet Magic: That combo of light brown sugar and granulated sugar? It’s what makes this bread dangerously good—moist crumb, crisp edges, and a caramelized aroma that fills my kitchen before it even comes out of the oven. The butter keeps it tender, but not greasy. Honestly, it’s the kind of flavor that makes you forget you’re eating "healthier" bread.
- Weeknight Workhorse: This loaf is my go-to for breakfast, snacks, or even a quick dessert. Toast it with peanut butter for a grab-and-go morning, or serve warm with a smear of cream cheese at dinner. (Yes, even on a Tuesday night.) It also freezes like a dream—just slice and reheat when you’re lazy.
- Budget-Friendly Staple: With just five core ingredients, this recipe stretches my grocery budget without sacrificing taste. A single batch costs me pennies but feels like a treat. Plus, it keeps for days in the fridge, so I’m never scrambling to bake something last-minute. My wallet and my taste buds win.
Step-by-step instructions for america's test kitchen zucchini bread
This method delivers a perfectly moist crumb every time—no dryness, no gummy texture, just ideal balance.
Prepare the Zucchini for Maximum Moisture
Begin by grating both medium zucchini using the large holes of a box grater. Transfer the grated zucchini to a clean kitchen towel and squeeze out every drop of liquid—this prevents a watery bread. I press firmly and twist the towel to extract as much moisture as possible. The goal is to work with just the zucchini solids, which will contribute natural sweetness without compromising texture.
Pro tip: Don't skip this draining step. Even slightly damp zucchini can make your bread dense or gummy. You want the mixture to be just barely moist—like wrung-out spinach—before proceeding. This is what guarantees that moist crumb the recipe promises.
Cream Butter and Sugars for Light Texture
In a stand mixer fitted with the paddle attachment, beat the room-temperature butter with the granulated sugar and light brown sugar on medium speed for 3-4 minutes. You're looking for a pale, fluffy mixture that nearly doubles in volume. This creaming process incorporates air, which creates that tender crumb we're after.
I press down on the butter mixture with a spatula occasionally to ensure even incorporation. The butter should look light and fluffy, with no streaks remaining. If you're using cold butter, let it sit at room temperature for 1-2 hours first—this makes all the difference in achieving that perfect texture.
Combine Wet Ingredients and Fold in Zucchini
Add the eggs one at a time, mixing on low speed after each addition until fully incorporated. Then add the vanilla extract and mix for 10 seconds. In a separate bowl, whisk together the all-purpose flour, ground cinnamon, ground nutmeg, baking soda, and salt. With the mixer on low, gradually add the dry ingredients to the wet mixture just until combined.
Remove the bowl from the mixer and gently fold in the drained zucchini using a silicone spatula. Be careful not to overmix—just combine until the zucchini is evenly distributed. The batter should be thick but pourable. If it looks too dry, add 1 tablespoon of water at a time until it reaches the right consistency. This is where you'll see the magic happen—the zucchini adds moisture while keeping the bread tender.
Fold in Chocolate Chips and Prepare the Pan
Using the same silicone spatula, gently fold in the semisweet chocolate chips. I like to distribute them evenly throughout the batter for those perfect swirls when baked. Grease a 9x5-inch loaf pan with butter and line it with parchment paper, leaving an overhang on the sides for easy removal.
Transfer the batter to the prepared pan and smooth the top with a spatula. The batter should fill the pan about 2/3 full. Tap the pan gently on the counter a few times to release any air bubbles. This step ensures even baking and prevents cracks in the crust. The chocolate chips will naturally swirl during baking, creating beautiful marbled patterns.
Bake to Golden Perfection
Preheat your oven to 350°F. Place the pan in the center rack and bake for 50-55 minutes, or until a toothpick inserted in the center comes out clean. The bread is done when the top is golden brown and the edges pull away slightly from the pan.
I recommend checking the bread at the 50-minute mark—ovens vary, and you want to catch it at the perfect moment. When you pull it out, let it cool in the pan for 10 minutes before transferring to a wire rack. This resting period helps the bread set properly without falling apart. The result should be a moist, tender loaf with a slightly crisp crust and beautiful chocolate swirls throughout.
Pro Tips For Making America'S Test Kitchen Zucchini Bread
- MEASURE BUTTER COLD: Grab that stick of butter straight from the fridge—no softening needed. The recipe relies on creaming butter and sugars for air, and if the butter melts mid-whip, you’ll end up with a dense loaf instead of that light, tender crumb. I learned this the hard way after making a batch that tasted more like cake batter than bread.
- GRATE ZUCCHINI FINE: Skip the food processor—this isn’t hummus. Use the smallest holes on your box grater (or pulse in a food processor, but don’t overdo it). Big chunks of zucchini steam instead of baking, leaving you with a soggy center. My grandmother swore by this, and she was right: the texture stays moist but not wet.
- WAIT FOR GOLDEN CRUST: The recipe says 50–55 minutes, but don’t pull it out at 50. Wait until the top is a deep golden brown, not just pale. A toothpick should come out with a few moist crumbs, not wet batter. I was skeptical until I tried it—overbaking dries it out, but underbaking leaves it gummy.
- ADD VANILLA BEAN: Skip the imitation stuff. Split one vanilla bean, scrape the seeds into the batter, and save the pod for tea. The flavor depth is night and day—no extra effort, just a richer taste. I know, I know, but trust the process. It’s the thing that makes this recipe stand out.
Best sauces and condiments for these flavors
Cream Cheese Glaze
This tangy glaze elevates your zucchini bread to bakery-quality perfection. Mix 4 oz cream cheese (softened), 2 tablespoons melted butter, and ¼ cup powdered sugar until smooth.
Drizzle over the cooled loaf and let it set for 10 minutes before slicing. For extra richness, add ½ teaspoon vanilla extract to the glaze mixture. 🍯
Maple Butter Swirl
Swap chocolate chips for a sweet-savory twist by folding in ½ cup chopped pecans and 2 tablespoons maple butter (mix 2 tbsp softened butter with 1 tbsp pure maple syrup). The maple butter adds a subtle caramelized depth that pairs beautifully with the warm spices.
Store-bought maple butter works, but homemade (simmer 2 tbsp butter with 1 tbsp maple syrup for 3 minutes) tastes even better.
Lemon Cream Cheese Frosting
Brighten up your bread with this zesty frosting: beat 4 oz cream cheese, 2 tbsp softened butter, ¼ cup powdered sugar, and 1 tbsp lemon juice until fluffy. Spread a thin layer on each slice for a morning treat that tastes like sunshine.
For extra flair, add 1 tsp lemon zest to the frosting for a pop of color and citrusy aroma.
Caramel Drizzle
Add a touch of indulgence with a simple caramel drizzle. Heat ½ cup heavy cream with ½ cup brown sugar and 2 tbsp butter in a saucepan until sugar dissolves, then simmer for 5 minutes**.
Cool slightly and drizzle over the loaf. The caramel's buttery sweetness complements the warm spices beautifully. For a quicker version, use ¼ cup store-bought caramel sauce warmed slightly for easier drizzling.
Spiced Honey Drizzle
Combine ¼ cup honey, 1 tbsp melted butter, and ½ teaspoon ground cinnamon for a fragrant drizzle that enhances the bread's natural sweetness. Warm the mixture gently until the cinnamon dissolves, then drizzle over the loaf.
This works especially well with a nutty variation or plain loaf. For extra warmth, add a pinch of ground cardamom to the honey mixture.
Nutella Swirl
For chocolate lovers, replace chocolate chips with ½ cup Nutella mixed with ¼ cup chopped hazelnuts. Fold gently into the batter for a decadent swirl. The hazelnuts add crunch, while the Nutella provides rich chocolate flavor.
If you prefer a smoother texture, warm the Nutella slightly before mixing to make it easier to fold. This variation feels like a dessert but tastes like a treat at any time of day.
Nutrition facts
Frequently asked questions
Why does my zucchini bread turn out dry?
Most likely, you didn't drain the grated zucchini enough or overbaked the loaf. The recipe calls for squeezing out all moisture from the zucchini—it should be barely damp, not wet. Also, check your oven temperature with an oven thermometer (350°F is key) and avoid opening the oven door during baking. Baking time varies, so use the toothpick test instead of guessing.
Can I substitute applesauce for some of the butter?
Yes, but with adjustments! Replace ¼ cup butter with ¼ cup unsweetened applesauce to reduce fat while adding moisture. Reduce the flour by 1 tablespoon to balance the extra liquid. The texture will be slightly denser but still tender. For best results, use this substitution in small batches to test your preference.
How do I store leftovers to keep them fresh?
Store in an airtight container at room temperature for up to 3 days, or refrigerate for 5 days. For longer storage, wrap slices individually in plastic wrap and freeze for up to 3 months. To revive stale slices, warm in a 200°F oven for 5 minutes or microwave wrapped in a damp paper towel for 10-15 seconds.
What's the best way to add nuts without making the bread dense?
Use chopped walnuts or pecans (not whole) and fold them in gently at the end—just until distributed. Toast the nuts first (350°F for 5-7 minutes) to enhance flavor. For extra moisture, reduce the flour by 1 tablespoon if adding ½ cup nuts. The key is minimal mixing after adding nuts to avoid developing gluten.
Can I make this recipe gluten-free?
Yes! Replace the all-purpose flour with a 1:1 gluten-free baking flour blend (like Bob's Red Mill). Add ½ teaspoon xanthan gum if your blend doesn't include it. Expect a slightly denser texture, but the moisture from the zucchini helps. Also, let the batter rest for 10 minutes before baking to improve rise.