Apple Sour Cream Coffee Cake

Recipe by evelynathens
READY IN: 1hr 10mins




  • For Topping: Blend walnuts, brown sugar, flour, cinnamon in processor until nuts are finely chopped.
  • Add butter and cut in using on/off turns until clumps begin to form.
  • (Can be made 1 day ahead) Cover and chill.
  • For Filling: Mix apples, sugar, cinnamon, and lemon juice in a bowl.
  • For Cake: Preheat oven to 350F.
  • Butter 13 x 9 x 2 inch glass baking dish.
  • In a small bowl, whisk sour cream and buttermilk to blend.
  • In a medium bowl, sift flour, baking powder, baking soda, and salt.
  • In a large bowl, beat butter and both sugars until creamy.
  • Add eggs, one at a time, beating well after each addition.
  • Mix in lemon juice and vanilla extract.
  • Beat in dry ingredients alternately with sour cream mixture in 3 additions each, mixing just until smooth.
  • Spread half of batter in prepared pan.
  • Spoon apple filling on top of batter.
  • Spread remaining batter over filling.
  • Sprinkle with topping.
  • Bake cake until tester inserted into center comes out clean, about 45 minutes.
  • If the top starts browning too quickly, cover with foil.