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Apple Crumb Cake

Apple Crumb Cake with a Maple Icing

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Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Servings 12

Ingredients
  

For the Cake

  • Klarbrunn Berry Blend Sparkling Water for serving
  • 2 ½ cups All Purpose Flour
  • 1 tsp. Baking Soda
  • ½ tsp. Baking Powder
  • ½ tsp. Fine Sea Salt
  • ¾ cup Butter softened
  • ¾ cup Granulated Cane Sugar
  • 3 large Eggs
  • 1 cup Sour Cream
  • ½ cup Buttermilk
  • 2 tsp. Vanilla Extract
  • 2 cups Honeycrisp Apples finely chopped
  • 1 tsp. Ground Cinnamon

For the Crumb Topping

  • 1 cup All Purpose Flour
  • ½ cup Brown Sugar
  • ¼ cup Granulated Cane Sugar
  • 1 tbsp. Ground Cinnamon
  • ½ tsp. Fine Sea Salt
  • ½ cup Butter melted

For the Icing

  • 2 cups Powdered Sugar
  • 1 tbsp. Maple Syrup
  • 1-2 tbsp. Whole Milk

Instructions
 

  • Preheat oven to 350F. Butter and line a 9×13" baking pan with parchment paper.

To Make the Cake

  • In the bowl of a stand mixer, add the softened butter and sugar. Beat for 2 minutes. Add the eggs and sour cream to beat 1-2 minutes. Stir in the buttermilk.
  • Add the flour, baking soda, baking powder, cinnamon, and salt. Mix just until combined. Fold in the chopped apples and vanilla.
  • Evenly spread out the batter in the prepared baking pan.

To Make the Crumb Topping

  • In a separate bowl (or reusing the batter bowl), combine all ingredients. Mix until crumb-like texture. Add more melted butter or olive oil if the crumbs seem too dry.
  • Spread the crumb mixture over top of the batter.
  • Bake for 40-50 minutes, until a toothpick inserted into the center comes out clean.
  • Let cool for at least 30 minutes.

To Make the Icing

  • Combine all ingredients in a bowl, whisking until smooth. Add more milk or maple syrup as needed until a smooth drizzle.
  • Drizzle the maple icing over the cake, let sit for 5 minutes to help the icing set, then enjoy with Klarbrunn Berry Blend Sparkling Water for a complementary refreshment!