Peanut butter chocolate chip zucchini bread is a delicious twist on classic zucchini bread, combining the rich, nutty flavor of peanut butter with melty chocolate chips and the moisture of shredded zucchini. This sweet, satisfying loaf makes a perfect breakfast, snack, or dessert, and is a clever way to use up extra zucchini, especially during the summer months. Before you start, make sure you have all your ingredients measured and your equipment ready for best results.
What You’ll Need
- 2 cups grated zucchini (about 2 medium zucchini, unpeeled)
- 1 3/4 cups all-purpose flour
- 1/2 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1 teaspoon ground cinnamon
- 1/2 cup creamy peanut butter (not natural or chunky for best texture)
- 1/2 cup neutral oil (canola, vegetable, or light olive oil)
- 3/4 cup granulated sugar
- 2 large eggs
- 2 teaspoons vanilla extract
- 1 cup semi-sweet chocolate chips
- Large mixing bowl
- Medium mixing bowl
- Box grater or food processor
- Rubber spatula or wooden spoon
- 9×5-inch loaf pan
- Parchment paper (optional, for easier removal)
- Wire cooling rack
Step-by-Step
- Preheat the oven. Set your oven to 350°F (175°C). Grease a 9×5-inch loaf pan with nonstick spray or line with parchment paper for easy removal.
- Prepare the zucchini. Wash and dry the zucchini. Trim the ends and grate using the large holes of a box grater or a food processor. Place the grated zucchini in a clean kitchen towel and squeeze out excess liquid—this prevents the loaf from becoming soggy. Measure out 2 cups after squeezing.
- Mix dry ingredients. In a medium bowl, whisk together flour, baking powder, baking soda, salt, and cinnamon until evenly combined.
- Mix wet ingredients. In a large bowl, whisk together peanut butter, oil, and sugar until smooth and creamy. Add eggs one at a time, whisking well after each addition. Stir in vanilla extract.
- Combine wet and dry mixtures. Add the dry ingredients to the wet mixture. Stir gently with a spatula until just combined—do not overmix.
- Add zucchini and chocolate chips. Fold in the squeezed zucchini and chocolate chips until evenly distributed. The batter will be thick.
- Transfer to pan. Pour the batter into the prepared loaf pan and smooth the top with a spatula. Sprinkle a few extra chocolate chips on top if desired.
- Bake. Place in the center of the oven and bake for 55–65 minutes, or until a toothpick inserted in the center comes out mostly clean (a few moist crumbs are fine, but no wet batter).
- Cool. Remove from the oven and let the bread cool in the pan for 10–15 minutes. Then lift it out (using parchment, if used) and transfer to a wire rack to cool completely before slicing.
- Serve and store. Slice and enjoy warm, at room temperature, or lightly toasted. Store leftovers in an airtight container at room temperature for up to 2 days, or refrigerate for up to 5 days. For longer storage, wrap tightly and freeze slices for up to 3 months.
Common Mistakes
- Not squeezing the zucchini: Failing to remove excess moisture from the zucchini can make the bread dense and soggy.
- Overmixing the batter: Stirring too much once the flour is added can create a tough, rubbery loaf instead of a tender crumb.
- Using natural peanut butter: Natural peanut butter tends to separate and can make the loaf greasy or cause it to fall apart. Stick to conventional creamy peanut butter.
- Incorrect oven temperature: Baking at too high or too low a temperature can cause uneven baking or a bread that’s raw in the center.
- Cutting before fully cooled: Slicing while the bread is still hot can lead to a gummy texture and slices that fall apart.
Tips
- Customize the add-ins: Swap chocolate chips for peanut butter chips, white chocolate chips, or chopped walnuts for variety.
- Make it healthier: Substitute up to half the flour with whole wheat flour, and try reducing the sugar by 1/4 cup if you prefer less sweetness.
- Check for doneness: Every oven is different; start checking at 55 minutes. The top should be golden and a toothpick should come out with just a few moist crumbs.
- Double the recipe: For two loaves, simply double all ingredients and bake in separate pans. Freeze one for later.
- Use parchment paper: Lining the pan makes removing the bread much easier and prevents sticking, especially with gooey chocolate chips.
- Room-temperature ingredients: Let eggs and peanut butter come to room temperature before mixing for a smoother batter.
Troubleshooting
- Bread is undercooked in the center: If the loaf looks done outside but is raw inside, cover loosely with foil and bake an additional 10–15 minutes. Ovens vary, so always check with a toothpick.
- Bread is too dense or gummy: This usually means too much moisture (did you squeeze the zucchini?) or overmixing. Next time, squeeze zucchini thoroughly and mix only until just combined.
- Loaf sticks to the pan: Run a thin knife around the edges and let the loaf cool slightly before trying to remove. Parchment paper helps prevent sticking.
- Bread falls apart when slicing: Wait until the bread is completely cool before slicing. Use a serrated knife for clean cuts.
- Chocolate chips sink to the bottom: Toss chips with a tablespoon of flour before folding in. This helps suspend them in the batter.
- Dry or crumbly bread: This may be due to overbaking or not enough oil or zucchini. Check oven temperature accuracy and measure ingredients carefully.
Frequently Asked Questions
- Can I use almond butter instead of peanut butter?
Yes, almond butter can be substituted for peanut butter in equal amounts, but the flavor will be slightly different and may be less pronounced. Make sure to use a creamy, non-separated almond butter for best texture. - Do I need to peel the zucchini?
No, peeling is not necessary. The skin is tender and adds color and nutrients to the bread. Just wash the zucchini well before grating. - Can I make this bread gluten-free?
Yes, use a 1:1 gluten-free all-purpose flour blend. The texture may be slightly different, but it should still work well. Check for doneness as gluten-free loaves sometimes take a few minutes longer to bake. - Can I use natural peanut butter?
It’s not recommended, as natural peanut butter tends to separate and may cause the bread to be greasy or crumbly. For best results, use conventional creamy peanut butter. - How do I store and freeze zucchini bread?
Store at room temperature for up to 2 days, refrigerated for up to 5 days, or freeze tightly wrapped slices for up to 3 months. Thaw at room temperature or briefly warm in the microwave. - Can I make muffins instead of a loaf?
Yes! Divide the batter among lined muffin tins, filling each about 2/3 full. Bake at 350°F (175°C) for 20–25 minutes, or until a toothpick comes out clean.
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