Name: Zucchini Coffee Cake Recipe
Prep time: 20 min
Cook time: 45 min
Total time: 65 min
Ingredients: 1 cup all-purpose flour; 1 cup packed light brown sugar; 1 teaspoon ground cinnamon; 1/2 cup unsalted butter, melted; 1/2 teaspoon salt; 2 large eggs; 3/4 cup granulated sugar; 1/2 cup vegetable oil; 1 teaspoon vanilla extract; 1 1/2 cups shredded zucchini, excess moisture squeezed out; 1 1/2 cups all-purpose flour; 1 teaspoon baking powder; 1/2 teaspoon baking soda; 1/2 teaspoon salt; 1 1/2 teaspoons ground cinnamon; 1/4 teaspoon ground nutmeg

Zucchini Coffee Cake Recipe tastes like a super moist cinnamon crumb cake that secretly sneaks in veggies while still feeling like dessert for breakfast. It works perfectly for busy families, brunch lovers, and anyone who wants a cozy treat in about 1 hour from start to finish. I tested this version in my tiny apartment kitchen on a hot August afternoon, and my neighbors still talk about it.

Why You Should Try This Zucchini Coffee Cake Recipe

This zucchini coffee cake recipe gives you a soft, tender crumb with a thick, crunchy streusel on top. The zucchini keeps everything incredibly moist without making the cake heavy or soggy.

You can serve it warm for breakfast, as an afternoon snack, or as a simple dessert with coffee or tea. Kids usually have no idea they just ate vegetables, which feels like a small personal victory every single time.

“This Zucchini Coffee Cake Recipe tastes like a bakery treat with a secret veggie upgrade, and my family devoured the whole pan in one day. ★★★★★”

Ingredients You’ll Need

You probably have most of these ingredients in your pantry already, and the rest come from a quick grocery run.

Dry ingredients

2 cups all-purpose flour (use a good unbleached brand for best texture)
1 teaspoon baking powder
1 teaspoon baking soda
1 teaspoon ground cinnamon
½ teaspoon ground nutmeg
½ teaspoon fine sea salt

Wet ingredients

½ cup unsalted butter, melted and slightly cooled
½ cup neutral oil (canola, vegetable, or light olive oil)
1 cup granulated sugar
½ cup light brown sugar, packed
2 large eggs, room temperature
2 teaspoons vanilla extract
1 cup plain Greek yogurt or sour cream (full fat works best, low fat still works in a pinch)

Zucchini

2 cups grated zucchini, lightly packed (about 2 medium zucchini)
- Use fresh, firm zucchini, not the giant watery ones from late season.
- You do not need to peel it; the green flecks look pretty in the cake.

Streusel crumb topping

1 cup all-purpose flour
½ cup light brown sugar, packed
¼ cup granulated sugar
1½ teaspoons ground cinnamon
¼ teaspoon fine sea salt
½ cup unsalted butter, melted
Optional: ½ cup chopped walnuts or pecans for crunch

Simple glaze (optional but very tasty)

1 cup powdered sugar
2–3 tablespoons milk or half-and-half
½ teaspoon vanilla extract

Equipment

9×13 inch baking pan (metal or glass; metal browns a bit more)
Mixing bowls, medium and large
Whisk and rubber spatula
Box grater or food processor with shredding blade for the zucchini
Measuring cups and spoons
Cooling rack
Small bowl and spoon for the glaze

Tips & Tricks

Squeeze the grated zucchini gently in a clean kitchen towel if it looks very wet, but keep some moisture so the cake stays soft.
Use room temperature eggs and yogurt so the batter mixes smoothly and bakes evenly.
Stir the batter only until the flour disappears; overmixing makes the cake tough instead of tender.
Mix the streusel until large clumps form, then gently break them into chunky pieces for a bakery-style crumb.
Line the pan with parchment with a little overhang if you want to lift the whole cake out cleanly for slicing.
Test doneness with a toothpick near the center; it should come out with a few moist crumbs, not wet batter.
Let the cake cool at least 20 to 30 minutes before glazing so the glaze sets instead of sliding right off.
Swap Greek yogurt with sour cream or even plain regular yogurt if that is what you have on hand.

How to Make Zucchini Coffee Cake Recipe

Step 1: Prep the zucchini and pan

Preheat your oven to 350°F and position a rack in the center. Grease a 9×13 inch pan with butter or nonstick spray, and line it with parchment if you want easy removal. Grate the zucchini on the medium holes of a box grater, then lightly squeeze out extra liquid if it feels very watery.

Step 2: Mix the streusel topping

In a medium bowl, combine flour, brown sugar, granulated sugar, cinnamon, and salt. Whisk to break up any sugar clumps. Pour in the melted butter and stir until the mixture turns into thick, clumpy crumbs, then fold in nuts if you use them and set the bowl aside.

Step 3: Combine the dry ingredients

In a large bowl, whisk together flour, baking powder, baking soda, cinnamon, nutmeg, and salt. Make sure everything mixes evenly so the leavening distributes throughout the batter. Set this bowl aside while you mix the wet ingredients.

Step 4: Mix the wet ingredients

In another large bowl, whisk the melted butter, oil, granulated sugar, and brown sugar until the mixture looks smooth and slightly thick. Add the eggs one at a time and whisk after each until the mixture looks glossy. Whisk in the vanilla and Greek yogurt or sour cream until everything looks creamy and fully combined.

Step 5: Add zucchini and bring the batter together

Fold the grated zucchini into the wet mixture with a spatula so it spreads evenly. Add the dry ingredients to the wet ingredients in two additions, gently folding after each one. Stop folding as soon as no streaks of dry flour remain so the cake stays tender.

Step 6: Assemble the cake

Pour the batter into the prepared pan and spread it into an even layer with your spatula. Sprinkle the streusel evenly over the top, breaking up any very large clumps into bite-size pieces. Make sure you cover the entire surface so every slice gets a crunchy crumb topping.

Step 7: Bake

Place the pan in the oven and bake for 35 to 45 minutes, depending on your oven and pan type. Start checking at 35 minutes by inserting a toothpick into the center; it should come out with a few moist crumbs, not wet batter. If the top browns too quickly, tent the pan loosely with foil and continue baking until the center finishes.

Step 8: Cool and glaze

Set the pan on a cooling rack and let the zucchini coffee cake cool at least 30 minutes. While it cools, whisk powdered sugar, milk, and vanilla in a small bowl until smooth and pourable, adding more milk a teaspoon at a time if it looks too thick. Drizzle the glaze over the slightly warm cake in zigzags or thin lines, then let it set before slicing.

Step 9: Slice and serve

Cut the zucchini coffee cake into squares or rectangles, depending on how generous you feel. Use a thin spatula to lift out the pieces so the crumb topping stays intact. Serve warm or at room temperature, and watch it disappear faster than you expect.

What to Serve with Zucchini Coffee Cake Recipe

This zucchini coffee cake recipe pairs beautifully with hot coffee, cold brew, or a simple cup of black or herbal tea. Kids usually love it with a glass of cold milk or chocolate milk. You can add a side of fresh berries, sliced peaches, or a simple fruit salad to balance the sweetness. For a brunch spread, serve it alongside scrambled eggs, yogurt parfaits, and a bowl of fresh fruit so everyone can build their own plate.

Storage Options

Store leftover zucchini coffee cake covered at room temperature for up to 2 days, as long as your kitchen stays cool.
Keep it in an airtight container in the fridge for up to 5 days, and bring slices to room temperature before serving for the best texture.
Freeze individual slices or the whole cake (well wrapped) for up to 2 months, then thaw overnight in the fridge.
Reheat slices in a 300°F oven or toaster oven for 5 to 10 minutes until warm, or microwave in short bursts if you feel impatient.