Apple Crumble Coffee Cake
Tender coffee cake layered with cinnamon walnut crumble and fresh apples. A perfect breakfast or dessert treat with tangy yogurt and sweet apple chunks throughout.
20 mins
40 mins
1 hr
Ingredients
Dry Ingredients
Crumble Mixture
Wet Ingredients
Equipment Needed
- 9x12 inch baking dish
- stand mixer or hand mixer
Ingredients
Dry Ingredients
Crumble Mixture
Wet Ingredients
Equipment Needed
- 9x12 inch baking dish
- stand mixer or hand mixer
Instructions
Prepare Pan and Dry Ingredients
- 1
Preheat oven
Preheat oven to 350°F. Butter a 9x12 inch baking dish generously.
- 2
Mix dry ingredients
Whisk flour, sea salt, baking powder, and baking soda together in a bowl. Set aside.
Make Crumble Mixture
- 1
Combine crumble
Combine walnuts, sugars, salt, cinnamon, and melted butter in a bowl. Mix until walnuts and sugars are thoroughly coated with butter.
Make Cake Batter
- 1
Cream butter and sugar
Cream butter and sugar together in another bowl with a spatula until well blended.
- 2
Add first egg
Add 1 egg and whisk until mixture is smooth, 2 to 3 minutes.
- 3
Add second egg
Whisk in second egg until thoroughly incorporated.
- 4
Add vanilla and yogurt
Add vanilla extract and yogurt; whisk together.
- 5
Combine wet and dry
Add flour mixture to wet ingredients; whisk just until flour disappears. Do not overmix.
- 6
Prepare apples
Remove cores from apples. Cut across into 1/8 to 1/4 inch slices. Stack up a few slices, make 1 cut down the center, and dice across into small cubes.
- 7
Fold in apples
Fold diced apples into cake batter until just combined.
Assemble and Bake
- 1
Layer batter and crumble
Spread 1/2 of the batter evenly into the bottom of dish. Scatter 1/2 of the crumble mixture evenly over the top. Add remaining batter in dollops. Spread evenly, trying not to disturb the crumbs. Top with the rest of the crumb mixture. Press crumbs into the batter very gently.
- 2
Bake
Bake in center of oven until a toothpick inserted into the center comes out clean, about 40 minutes.
- 3
Cool
Let cool to room temperature, about 30 minutes, before slicing and serving.
Cook's Notes
Dark brown sugar will work as well as light brown. A relatively runny, but beautifully tangy, sheep's milk yogurt works wonderfully, but regular plain Greek yogurt or sour cream will work too. You can use Honeycrisp or Granny Smith apples. If you cut your apples too big, your cake will be done but the apples will not be, so take your time and make them small.
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