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chocolate zucchini bread sliced

Recipes

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Breads

Fudgy Double Chocolate Zucchini Bread 

prep 15 minutes mins
cook 1 hour hr
Cooling 1 hour hr

If zucchini bread and brownies had a baby, it would be this chocolate zucchini bread! I took my perfect zucchini bread and turned it into the most fudgey chocolate version.

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Fudgy Double Chocolate Zucchini Bread 

September 9, 2025
September 10, 2025

If zucchini bread and brownies had a baby, it would be this chocolate zucchini bread! I took my perfect zucchini bread and turned it into the most fudgy chocolate version.

chocolate zucchini bread sliced
Table of Contents
  • How To Make The Fudgiest Chocolate Zucchini Bread
    • Ingredients & Substitutions
    • Step-by-Step Instructions with Photos
  • Pro Tips for the best zucchini bread:
  • Frequently Asked Questions 
  • How to store zucchini bread
  • Chocolate Zucchini Bread Recipe

Since I was given like a thousand pounds of zucchini, I figured I would bake as many zucchini recipes as I could with them. I made *one* zucchini salad lol but I took my easy base Zucchini Bread recipe and turned it into different flavors – aka, brown butter chocolate chip, lemon and of course, this fudgy chocolate zucchini bread. I want to say all of them are my favorite while I’m eating them but when I eat the next one that becomes my new favorite so really, I just can’t pick. 

How To Make The Fudgiest Chocolate Zucchini Bread

It’s just as simple as the original – mix the wet ingredients well. I like to add the eggs in one at a time and beat really well between each one. Then add the dry ingredients followed by the shredded zucchini and chocolate chips.

The most tedious part is just shredding the zucchini so I definitely recommend a Kitchen Aid Stand Mixer Shredding Attachment. It’s fairly inexpensive and so useful for so many recipes! 

slice of chocolate zucchini bread

Ingredients & Substitutions

  • Zucchini: I had very large zucchini and made several recipes from one. Some zucchinis can be more dry than others but if you weigh the amount, this shouldn’t matter too much. If you’re a little short on zucchini, you can also make up the difference in weight with apple sauce or yogurt. 
  • Flour: I use all purpose flour in most of my recipes and I HIGHLY recommend using a digital scale, as flour is so often over measured.
    • 1:1 Gluten-free flour substitutes should also work fine. 
  • Cocoa Powder: I love using dutch-processed cocoa powder but natural cocoa also works fine. Again, I recommend measuring this with a scale. 
  • Baking Powder/Soda: I use both baking powder and baking soda to get a nice rise on the heavy batter.
  • Sugar: I use granulated sugar – brown sugar also works fine. 
  • Oil/Butter: My zucchini bread recipes work with both oil and butter, but I love the melt-in-your-mouth texture that the butter gives so I recommend that. 
  • Eggs: I use room temperature, large eggs. Place them in hot water for a few minutes if they’re cold. 
  • Chocolate chips: Any kind of chocolate chips or chopped chocolate works fine!

Step-by-Step Instructions with Photos

  1. Shred the zucchinis (with the peel is fine). Small seeds are fine but I discard the large ones. 
  2. Whisk together the sugar and butter until they’re well combined.
  3. Whisk in the eggs and vanilla. For extra fluffy bread, add one egg at a time, whisking until each one is completely combined. Then add the other egg, etc. 
  4. Whisk together the dry ingredients and then add them into the wet ingredients, whisking just until they’re completely combined.
  5. Fold in the shredded zucchini just until it’s combined. 
  6. Fold in the chocolate chips just until they’re evenly distributed.
  7. Fill the batter in the prepared pan and *optional* top with granulated sugar and pipe a line of butter down the center to get a center crack. 
  8. Bake for about 60-65 minutes, until you insert a knife in the center and no wet batter comes out.
zucchini shredded in a bowl
shredded zucchini
sugar and oil/butter whisked together
sugar and butter whisked together
egg whisked into batter, one at a time
egg whisked into batter, one at a time
dry ingredients folded into the batter
dry ingredients folded into the batter
zucchini and chocolate chips folded into the batter
zucchini and chocolate chips folded into the batter
chocolate zucchini bread batter spread in prepared  with butter piped on top and extra chocolate chips
chocolate zucchini bread batter spread in pan – butter piped on top
chocolate zucchini bread finished baking
chocolate zucchini bread finished baking

Pro Tips for the best zucchini bread:

  • Make sure to use the right pan for this zucchini bread. I recommend a 9×5” metal loaf pan. If you’re using a glass pan it may not bake properly. 
  • Don’t swap or reduce any of the ingredients if I didn’t mention them in the ingredient section above. 
  • Use a digital scale to measure your ingredients for the most accurate measurements. If your zucchini doesn’t add up to the exact weight, you can add a little water, applesauce or yogurt to make up the difference. 

Frequently Asked Questions 

How do I know when it’s done baking?

I stick a knife all the way down the center (the tallest part) and if it comes out with moist crumbs instead of gummy batter it’s done baking.
You can also check the temperature with a digital thermometer – you want it around 200F (93C). 

What kind of chocolate to use in zucchini bread?

You can use any kind of chocolate you want here. Mini chocolate chips disperse more evenly, larger chocolate chips give you nice large chunks of chocolate and a chopped up chocolate bar takes longer to ‘set’ so you’ll get more of those melty pools of chocolate as opposed to a chunk/bite of chocolate. 
How to make chocolate zucchini bread as muffins?
Absolutely, I made this zucchini bread into like 5 flavors and tested them all as muffins – I won’t double post the recipe as muffins lol but they do work perfectly if you follow the baking instructions of my vanilla muffin recipe (rest for about an hour, bake 12 large muffins at 425F and then 375F). 

chocolate zucchini bread sliced

How to store zucchini bread

I place the bread under a cake dome or in an airtight container or baggy at room temperature for 2-3 days. If it’s longer you can refrigerate it for a couple of days but it may dry out quicker in the fridge, so I recommend freezing instead. 

You can freeze the whole thing or each individual slice with plastic wrap and then place them in a freezer bag. Bring back to room temperature before serving.

Thanks so much for reading today’s post, if you have any questions just comment down below.

If you loved this fudgy chocolate zucchini bread as much as I do, I would appreciate it if you left a 5-star rating or a review below lol & don’t forget to save on Pinterest! 

As always, have a blessed day and happy baking!

Love, B

chocolate zucchini bread sliced
Recipes
Breads

Chocolate Zucchini Bread Recipe

prep 15 minutes mins
cook 1 hour hr
Cooling 1 hour hr
total 2 hours hrs 15 minutes mins
Serves 10 servings
If zucchini bread and brownies had a baby, it would be this chocolate zucchini bread! I took my perfect zucchini bread and turned it into the most fudgy chocolate version.
Print Recipe Pin Recipe email recipe
Servings 10 servings
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Equipment

  • 1 large bowl
  • 1 Whisk
  • 1 Rubber Spatula
  • 1 9×5 metal baking pan

Ingredients

  • 113 gram salted butter, melted
  • 240 grams all-purpose flour, spooned & leveled
  • 60 grams dutch-processed cocoa powder, spooned & leveled
  • 1 Tbsp baking powder
  • 1/2 tsp baking soda
  • 1/4 tsp fine sea salt
  • 250 grams granulated sugar
  • 3 large eggs, room temperature
  • 400 grams shredded zucchini
  • 1 tbsp pure vanilla extract
  • 170 grams chocolate chips, I like minis
  • 1 tbsp granulated sugar
  • flakey sea salt

Method

  1. Preheat the oven to 350F (177C) and grease and line a 9×5″ loaf pan with baking spray and parchment paper.
  2. In a medium bowl, whisk together the flour, cocoa powder, baking powder, baking soda and salt. Set aside.
    240 grams all-purpose flour spooned & leveled, 1 Tbsp baking powder, 1/2 tsp baking soda, 1/4 tsp fine sea salt, 60 grams dutch-processed cocoa powder spooned & leveled
  3. In a large bowl whisk together the butter and sugar until they’re well combined.
    250 grams granulated sugar, 113 gram salted butter melted
  4. Add in the vanilla and one egg and whisk until it’s well combined and has lightened in color, about 30 seconds. Repeat with the next two eggs, one at a time.
    3 large eggs room temperature, 1 tbsp pure vanilla extract
  5. Add in the dry ingredients and fold just until the last streak of flour is incorporated.
  6. Fold in the grated zucchini and chocolate chips, until they're evenly distributed.
    400 grams shredded zucchini, 170 grams chocolate chips I like minis
  7. Spread the batter into the prepared pan. Top with a sprinkle of sugar, if desired, and pipe some butter in the center (to create a little crack – optional) and bake for about 60-65 minutes. I do half on convection and have on conventional cuz my oven is too hot on the bottom.
    1 tbsp granulated sugar
  8. Top with flakey sea salt and cool for 30-60 minutes before slicing.
    flakey sea salt

Notes

*If you’re a little short on zucchini, you can also make up the difference in weight with apple sauce or yogurt. 

Nutrition

Calories: 398kcalCarbohydrates: 61gProtein: 6gFat: 17gSaturated Fat: 10gPolyunsaturated Fat: 1gMonounsaturated Fat: 3gTrans Fat: 0.4gCholesterol: 73mgSodium: 395mgPotassium: 293mgFiber: 3gSugar: 37gVitamin A: 434IUVitamin C: 7mgCalcium: 111mgIron: 2mg
Course: Breads
Cuisine: American
Keyword: chocolate, chocolate chip, zucchini bread

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