Moist, dense chocolate cake studded with generous dark chocolate morsels — the perfect end-of-summer dessert. Turn the zucchini your neighbor left on your porch into a remarkable treat. This allergy-friendly Gluten-Free Vegan Chocolate Zucchini Cake is free from gluten, wheat, dairy, eggs, soy, peanuts, and tree nuts. It’s vegan and top-8-free, so everyone can enjoy a slice.
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Since we moved into a neighborhood, zucchini keeps appearing on our doorstep — generous neighbors, extra garden bounty. I don’t mind one bit. Grated zucchini adds wonderful moisture to baked goods, and it sneaks in a bit of veg without changing the chocolatey goodness. My son would happily eat these gluten-free, vegan chocolate chip zucchini muffins every day, and the same appeal applies to this cake: it’s rich, comforting, and easy to share.
This cake is based on my mom’s recipe. I adapted it to be allergy-friendly and still kept the nostalgic, home-baked flavor. The melted dairy-free chocolate chips on top create a glossy, slightly crackled finish so you don’t need to fuss with frosting — perfect when you want cake now and don’t want extra steps or dishes.
I add ground flax for egg-free binding and extra moisture — a simple way to keep the cake tender while offering a nutritional boost. You can serve a slice for dessert or let kids sneak a piece with breakfast; compared to sugary cereal or a donut, this feels like a better start to the day. If you prefer not to use coconut oil, any neutral oil such as canola or sunflower works well.
This recipe fills a 9×13 pan, making it ideal for potlucks, picnics, or sharing with neighbors — a tasty way to encourage them to bring more zucchini next season.
Common Questions About This Allergy-Friendly Chocolate Zucchini Cake
- How is it made gluten-free? I swap regular flour for a gluten-free flour blend and add a small amount of xanthan gum for structure. If your blend already includes xanthan, omit it.
- How do I make it egg-free? Flax eggs (ground flaxseed mixed with warm water) work well here — they add moisture and keep the crumb tender.
- Can I use a different oil? Yes. Coconut oil, canola, or sunflower oil all work. Choose a neutral oil if you prefer no coconut flavor.
- Do I need to drain the zucchini? No. Grate the zucchini (skin on) and measure it as called for. If using very large zucchinis with big seeds, remove the seeds before grating.
- What about leftover grated zucchini? Store extras in an airtight bag in the freezer for future baking. Thaw and drain excess moisture in a colander before using.
- Can I use regular flour or eggs? Yes — substitute equal amounts of regular flour and omit the xanthan. If you can have eggs, use two eggs in place of the flax eggs.
I hope this allergy-friendly version helps anyone with dietary restrictions enjoy a rich slice of chocolate zucchini cake. It’s the kind of dessert that’s comforting, satisfying, and easy to share — whether you serve it at a family dinner, pack it for school lunches, or slice it for neighbors. Happy baking!
Gluten-Free Chocolate Zucchini Cake (Vegan)
9×13
20 minutes
40 minutes
1 hour
Moist, dense chocolate cake with a thick layer of dairy-free chocolate chips on top. This simple, allergy-friendly version keeps the flavors rich while avoiding common allergens like gluten, dairy, eggs, soy, peanuts and tree nuts.
Ingredients
- 2 1/2 cups gluten-free flour
- 1 3/4 cups sugar
- 5 tablespoons cocoa powder
- 1 tsp baking soda
- 1/2 tsp baking powder
- 1/2 tsp xanthan gum (omit if your blend already contains it)
- 1/2 tsp cinnamon
- 1/4 tsp salt
- 3/4 cup melted coconut oil (or another neutral oil)
- 2 flax eggs (2 Tbsp ground flaxseed + 5 Tbsp warm water)
- 1 Tbsp vanilla extract
- 1/2 cup rice milk (or other plant milk)
- 2 cups grated zucchini
- 2 cups dairy-free chocolate chips
Instructions
- Preheat oven to 350°F and lightly grease a 9×13-inch glass baking dish.
- In a large bowl or stand mixer, whisk together the dry ingredients: gluten-free flour, sugar, cocoa, baking soda, baking powder, xanthan, cinnamon, and salt.
- Add the wet ingredients: flax eggs, melted oil, vanilla, and rice milk. Mix until combined; the batter will be thick.
- Fold in the grated zucchini until evenly distributed.
- Pour the batter into the prepared pan and spread evenly. Sprinkle the dairy-free chocolate chips across the top — be generous if you like lots of chips.
- Bake 35–40 minutes, or until the edges are set and the center springs back when touched. A toothpick inserted near the center may come out with a few moist crumbs due to the zucchini.
- Allow the cake to cool before slicing. Store at room temperature in an airtight container for 2–3 days.
Don’t forget to pin this so you can find it later, and share with friends who need allergy-friendly recipes.
If you enjoy chocolate zucchini cake, you might also like other allergy-friendly chocolate desserts featured on this site.
Gluten & Dairy-free Triple Chocolate Pie
Chocolate Sheet Cake (Top-8-free, Vegan)
The Best Gluten-free Vegan Brownies
