Name: Chocolate Zucchini Bread With Sour Cream
Prep time: 20 min
Cook time: 60 min
Total time: 80 min
Ingredients: 1 1/2 cups all-purpose flour; 1/2 cup unsweetened cocoa powder; 1 teaspoon baking soda; 1/2 teaspoon baking powder; 1/2 teaspoon fine sea salt; 1 teaspoon ground cinnamon; 1/2 cup unsalted butter, melted and slightly cooled; 1/2 cup sour cream; 2 large eggs; 3/4 cup granulated sugar; 1/4 cup brown sugar, packed; 1 teaspoon vanilla extract; 1 1/2 cups finely shredded zucchini, squeezed dry; 3/4 cup semisweet chocolate chips

Chocolate Zucchini Bread With Sour Cream tastes like a super moist chocolate loaf cake that secretly eats like dessert but passes as breakfast. It works perfectly for busy families, chocolate lovers, and anyone who wants a quick bake in about 1 hour from start to finish. I tested this version on my kids, my neighbors, and my very honest book club, and not a single person guessed it had zucchini in it.

Why Choose This Chocolate Zucchini Bread With Sour Cream

Sour cream gives this chocolate zucchini bread a rich, tender crumb and keeps it soft for days. The zucchini melts into the batter and adds moisture without turning the bread soggy or “vegetable-y.”

You mix everything in a couple of bowls, use basic pantry ingredients, and skip any fancy equipment. The result tastes like a cross between a brownie and a chocolate snack cake, with little flecks of zucchini that mostly disappear once it bakes.

“This Chocolate Zucchini Bread With Sour Cream tastes like a fudgy chocolate loaf from a bakery, only better because it stays moist for days and slices like a dream.” ★★★★★

Ingredients You’ll Need

You can mix this chocolate zucchini bread with sour cream using simple pantry staples. I’ll include notes and easy swaps right in the list.

Dry ingredients

1 ½ cups all purpose flour
- Use a standard unbleached flour such as King Arthur or Gold Medal.
½ cup unsweetened cocoa powder
- Use natural cocoa for a classic flavor or Dutch process for deeper chocolate notes.
1 teaspoon baking soda
½ teaspoon baking powder
½ teaspoon fine sea salt
1 teaspoon instant espresso powder (optional)
- This boosts chocolate flavor and does not make the bread taste like coffee.

Wet ingredients

2 large eggs, room temperature
1 cup granulated sugar
- You can swap ¼ cup with light brown sugar for a hint of caramel flavor.
½ cup neutral oil
- Use canola, vegetable, or light olive oil.
½ cup full fat sour cream
- Greek yogurt works in a pinch, but sour cream gives a softer crumb.
2 teaspoons pure vanilla extract

Zucchini and mix ins

1 ½ cups finely shredded zucchini, lightly packed
- Do not peel the zucchini. The green flecks look pretty and stay tender.
- Pat very gently with a paper towel if it looks extremely wet, but do not squeeze it dry.
¾ cup chocolate chips or chunks
- Use semi sweet or dark chocolate. Mini chips distribute nicely in every bite.
Optional: ½ cup chopped walnuts or pecans
- Toast them lightly in a dry skillet for extra flavor.

Equipment list

9 x 5 inch loaf pan
Parchment paper
Two medium mixing bowls
Whisk and rubber spatula
Box grater for the zucchini
Cooling rack
Measuring cups and spoons

Tips & Tricks

Grease the loaf pan and line it with a parchment sling so the bread lifts out easily.
Use room temperature eggs and sour cream so the batter mixes smoothly and bakes evenly.
Shred the zucchini on the fine or small side of the grater so it disappears into the crumb.
Do not squeeze the zucchini dry or the bread can turn out dense and crumbly.
Stir the batter gently once you add the flour so you avoid tough, overmixed bread.
Toss chocolate chips with a teaspoon of flour before folding them in so they stay suspended.
Check doneness with a toothpick near the center; a few moist crumbs count as done, wet batter does not.
Let the bread cool at least 20 to 30 minutes before slicing so it holds its shape.

How to Make Chocolate Zucchini Bread With Sour Cream

Step 1: Prep the pan and oven

Preheat your oven to 350°F. Grease a 9 x 5 inch loaf pan with oil or nonstick spray, then line it with a strip of parchment that hangs over the long sides. This parchment sling makes it easy to lift the chocolate zucchini bread out once it cools.

Step 2: Shred the zucchini

Wash and dry the zucchini. Trim the ends, then shred it on the small holes of a box grater. Spread the shreds on a plate and pat very lightly with a paper towel if they look extremely wet, but keep most of the moisture.

Step 3: Mix the dry ingredients

In a medium bowl, whisk the flour, cocoa powder, baking soda, baking powder, salt, and espresso powder. Break up any cocoa clumps so the batter stays smooth. Set this bowl aside.

Step 4: Mix the wet ingredients

In a larger bowl, whisk the eggs and sugar until the mixture looks slightly thick and lighter in color. Whisk in the oil until the mixture looks glossy. Add the sour cream and vanilla and whisk until the mixture looks smooth and creamy.

Step 5: Combine wet and dry

Sprinkle the dry ingredients over the wet ingredients. Use a spatula to fold the mixture together just until no dry streaks of flour remain. Scrape the bottom and sides of the bowl so everything mixes evenly.

Step 6: Fold in zucchini and chocolate

Add the shredded zucchini to the batter and fold it in gently. Add the chocolate chips and nuts if you use them and fold just until they spread through the batter. The batter will look thick and rich.

Step 7: Fill the pan and bake

Pour the batter into the prepared loaf pan and smooth the top with a spatula. Sprinkle a few extra chocolate chips on top if you want a bakery style look. Bake for 50 to 60 minutes, until a toothpick inserted in the center comes out with moist crumbs but no wet batter.

Step 8: Cool and slice

Set the pan on a cooling rack and let the bread cool in the pan for about 15 minutes. Use the parchment sling to lift the loaf out and place it directly on the rack. Cool at least another 15 minutes before slicing so the chocolate zucchini bread with sour cream cuts cleanly.

What to Serve with it?

Serve warm slices with a cold glass of milk, a mug of coffee, or hot cocoa for a double chocolate moment. Kids love it with peanut butter or almond butter spread on top like a chocolate sandwich. You can also add a spoonful of vanilla yogurt and fresh berries for a breakfast plate that feels special but still stays simple. For dessert, add a scoop of vanilla ice cream and a few extra chocolate chips on top.

Storage Options

Store leftover chocolate zucchini bread at room temperature, wrapped tightly or in an airtight container, for up to 3 days.
Keep it in the fridge for up to 5 days if your kitchen runs warm; bring slices to room temperature or warm them slightly before serving.
Freeze individual slices or the whole loaf, tightly wrapped in plastic and then in a freezer bag, for up to 2 months.
Reheat slices in the microwave for about 10 to 15 seconds or in a 300°F oven for 5 to 8 minutes until the chocolate just softens and the bread feels warm and tender.