Recipe Details

Recipe provided by AllRecipes.com

Apple Crumble Coffee Cake

Chef John's tempting apple crumb cake has diced apples layered with a buttery cinnamon-walnut crumble for an elevated, irresistible coffee cake.
Makes:8 servings

Ingredients

  • 2 teaspoons unsalted butter
  • 2 cups all-purpose flour
  • 1 teaspoon baking powder
  • ¾ teaspoon baking soda
  • ½ teaspoon fine sea salt
  • 1½ cups finely chopped toasted walnuts
  • ⅓ cup packed light brown sugar
  • ⅓ cup white sugar
  • 3 tablespoons unsalted butter, melted
  • 1 teaspoon ground cinnamon
  • ¼ teaspoon salt
  • 1 cup white sugar
  • ½ cup unsalted butter, at room temperature
  • 2 large eggs
  • 1 cup plain yogurt
  • 1½ teaspoons vanilla extract
  • 2 Honeycrisp apples

Directions

Prep:25 mCook:40 mReady:1 h 35 m
  1. Gather all ingredients.
  2. Preheat the oven to 350 degrees F (175 degrees C). Butter a 9x12-inch baking dish generously.
  3. Mix dry ingredients: Whisk flour, baking powder, baking soda, and salt together in a bowl. Set aside.
  4. Make the crumble: Combine walnuts, brown sugar, white sugar, melted butter, cinnamon, and salt in a bowl. Mix until walnuts and sugar are thoroughly coated with butter.
  5. Mix the wet ingredients: Cream sugar and butter together in another bowl with a spatula until well blended.
  6. Add 1 egg and whisk until mixture is smooth, 2 to 3 minutes.
  7. Whisk in second egg until thoroughly incorporated. Add yogurt and vanilla; whisk together.
  8. Add dry flour mixture to wet ingredients; whisk just until flour disappears. Do not overmix.
  9. Remove cores from apples. Cut across into 1/8- to 1/4-inch slices. Stack up a few slices, make a cut down the center, and dice across into cubes.
  10. Add to cake batter, folding in with a spatula until just combined.
  11. Spread 1/2 of the batter evenly into the bottom of the prepared baking dish. Scatter 1/2 of the crumble mixture evenly over the top.
  12. Top with the rest of the batter in dollops. Spread carefully to evenly distribute, trying not to disturb the crumbs.
  13. Top with the rest of the crumb mixture. Press crumbs into the batter very gently.
  14. Bake in the center of the preheated oven until a toothpick or bamboo skewer inserted into the center comes out clean, about 40 minutes.
  15. Let cool to room temperature, about 30 minutes, before slicing and serving.

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