Blackberry Zucchini Coffee Cake with Honey Glaze

It’s here! The best cake I’ve made in a VERY long time. It’s a blackberry zucchini coffee cake with honey glaze, and you are going to love it.

Blackberry Zucchini Coffee Cake

Blackberry Zucchini Coffee Cake

Where to even begin!?

Oh my goodness. I could go on forever about this blackberry zucchini coffee cake, but I’ll keep this short and sweet…

It’s moist, tender, full of bursting blackberries and luscious zucchini, topped with the most epic streusel from Bon Appetit, and drizzled with a sweet honey glaze.

There’s something about the texture that just melts in your mouth. And I love the zucchini folded in for surprising, somewhat rich flavor you wouldn’t expect in a coffee cake. Perfect for a decadent breakfast, or even after dinner with a cup of tea.

Blackberry Zucchini Coffee Cake

Blackberry Zucchini Coffee Cake

So heat up your ovens and let’s get baking this weekend! I cannot wait, and I hope you can’t either.


Blackberry Zucchini Coffee Cake with Honey Glaze

a tender, moist blackberry zucchini coffee cake with a sweet honey glaze

serves: 8

  • Author: Kayla Howey


Streusel Topping

  • 1 cup brown sugar
  • ½ cup granulated sugar
  • ½ tsp kosher salt
  • 2 sticks butter, melted
  • 2 ½ cups all-purpose flour

Blackberry Zucchini Coffee Cake

  • 1 ½ cups all-purpose flour
  • ½ tsp baking soda
  • ½ tsp baking powder
  • ¼ tsp kosher salt
  • 6 tbsp butter, softened
  • ¾ cup granulated sugar
  • 1 egg
  • ¾ cup sour cream
  • 1 tsp pure vanilla extract
  • 6 oz grated zucchini
  • 6 oz fresh blackberries, quartered

Honey Glaze

  • 2/3 cup powdered sugar
  • 2 tbsp honey
  • 1 tbsp water
  • extra blackberries, for garnishing
  • softened salted butter, for slathering


Streusel Topping

1. In a bowl, mix together the brown sugar, granulated sugar, and salt.

2. Stir in the melted butter until incorporated.

3. Add the flour and toss with a fork until combined. You should be left with large clumps of a somewhat “wet” streusel. Set aside.

Blackberry Zucchini Coffee Cake

1. Preheat the oven to 350F.

2. In a bowl, sift together the flour, baking soda, baking powder, and salt. Set aside.

3. In a stand mixer, cream the butter and sugar until light and fluffy using a paddle attachment.

4. Add the egg and mix until combined, scraping down the sides and bottom of the bowl if needed.

5. Mix in the sour cream and vanilla extract. Gradually add the sifted flour mixture, mixing on low speed. Again, scrape the bowl if needed.

6. Wrap the zucchini in paper towels and ring out most of the water by squeezing it over a sink. You should be left with somewhat dry grated zucchini.

7. Remove the bowl from the stand mixer and fold in the zucchini and blackberries by hand using a rubber spatula.

8. Pour the batter into a greased, 9×2” cake pan. Top with the streusel. Bake for 35 minutes, or until the center is cooked through.

9. Remove the pan from the oven and let cool for 15 minutes. Run a butter knife along the edges to loosen the cake. Place a cutting board on top of the cake pan. Flip the cake out onto the cutting board, and then flip again onto another cutting board or plate so that it is upright.

Honey Glaze

1. Meanwhile, whisk together the powdered sugar, water, and honey until smooth and silky.

2. Drizzle over top the warm coffee cake.

3. Garnish with extra blackberries and cut the cake into pieces.

4. Slather some softened salted butter onto each piece, if you’d like.


This is definitely best eaten warm, in my opinion, but it is absolutely delicious chilled or at room temperature, too!

Blackberry Zucchini Coffee Cake

My other choice of baked good for the weekend – definitely these chocolate chip blueberry muffins!

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