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piece of zucchini crumb cake on a green plate

Zucchini Crumb Cake

  • Author: Sally
  • Prep Time: 15 minutes
  • Cook Time: 35 minutes
  • Total Time: 1 hour, 5 minutes
  • Yield: serves 9-12
  • Category: Cake
  • Method: Baking
  • Cuisine: American

Description

Adapted from my zucchini bread recipe, this zucchini crumb cake is moist, cinnamon-spiced, and hidden with summer’s favorite green vegetable inside. Topped with a buttery brown sugar crumb topping and sweet vanilla icing, veggies for breakfast never tasted so good!


Ingredients

Crumb Topping

  • 1/2 cup (63g) all-purpose flour
  • 1/2 cup (100g) packed light or dark brown sugar
  • 1 teaspoon ground cinnamon
  • 1/4 cup (4 Tbsp; 56g) unsalted butter, melted

Cake

  • 1 and 1/2 cups (188g) all-purpose flour (spooned & leveled)
  • 1 teaspoon baking powder
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 teaspoon ground cinnamon
  • 1/4 teaspoon ground nutmeg
  • 1/2 cup (8 Tbsp; 113g) unsalted butter, melted + slightly cooled
  • 1/3 cup (65g) packed light or dark brown sugar
  • 1/3 cup (65ggranulated sugar
  • 1 large egg, at room temperature
  • 1 and 1/2 teaspoons pure vanilla extract
  • 1 cup (130g) shredded zucchini (no need to blot)
  • optional: vanilla icing

Instructions

  1. Preheat oven to 350°F (177°C). Grease an 8-inch or 9-inch square or round baking pan, springform pan, or pie dish or line with parchment paper. Set aside.
  2. Make the crumb topping: With a fork, mix the flour, brown sugar, and cinnamon together in a small bowl. Mix in the melted butter. Don’t over-mix; you want the flour-y crumbles!
  3. Make the cake: Whisk the flour, baking powder, baking soda, salt, cinnamon, and nutmeg together in a large bowl. Whisk the butter, brown sugar, granulated sugar, egg, and vanilla extract together in a medium bowl, then whisk in the shredded zucchini. Pour the wet ingredients into the dry ingredients and mix until combined. Batter will be thick. Pour/spread into prepared baking pan, then sprinkle the crumb topping evenly on top.
  4. Bake for 35-38 minutes or until a toothpick inserted in the center of the cake comes out mostly clean with no wet batter. (A few moist crumbs are ok!) If you find the top of the cake is browning too quickly in the oven, loosely cover it with aluminum foil.
  5. Remove the cake from the oven and set on a wire rack. Allow to slightly cool for a few minutes before slicing. I suggest drizzling with vanilla icing while the cake is still warm!
  6. Cover leftover cake tightly and store in the refrigerator for up to 5 days.

Notes

  1. Make Ahead Instructions: Freeze baked and cooled cake for up to 3 months. Bring to room temperature and drizzle with vanilla icing, if desired, before serving.
  2. Special Tools (affiliate links): 8-inch Square Baking Pan, 9-Inch Square Baking Pan, 9-inch Round Baking Pan, 9-Inch Springform Pan, or 9-inch Pie Dish | Glass Mixing Bowls | Whisk | Box Grater | Cooling Rack
  3. 9×13-inch Crumb Cake: Doubling the recipe will be too much batter for a 9×13-inch cake pan. I recommend doubling the recipe, filling the pan halfway, then using any extra batter for muffins. Bake time for 9×13-inch crumb cake will be around 45-50 minutes, but use a toothpick to test for doneness. Instructions for baking zucchini muffins are below.
  4. Zucchini Crumb Cake Muffins: Make the crumb topping and batter as written. Grease a 12-count muffin pan or line with liners. Spoon the batter evenly into each liner, filling each all the way to the top. Press crumb topping into each. Bake the muffins for 5 minutes at 425°F (218°C) then, keeping the muffins in the oven, reduce the oven temperature to 350°F (177°C). Bake for an additional 13-16 minutes or until a toothpick inserted in the center comes out clean. The total time these muffins take in the oven is about 18-21 minutes, give or take. Allow the muffins to cool for 5 minutes in the muffin pan, then transfer to a wire rack to continue cooling. Yield: about 12-14 muffins.

Keywords: zucchini crumb cake