Apple Crisp Cake Recipe - BettyCrocker.com

Ingredients

• 3/4 cup old-fashioned oats
• 1/4 cup Gold Medal™ all-purpose flour
• 3/4 cup packed brown sugar
• 1 teaspoon ground cinnamon
• 1/2 cup cold butter
• 1/2 cup chopped walnuts
• 1 tablespoon butter
• 2 cups coarsely chopped, peeled tart apples (2 medium)
• 1 box Betty Crocker™ Super Moist™ Yellow Cake Mix
• 1/3 cup vegetable oil
• 1/2 cup water
• 4 eggs
• 1 cup sour cream
• 1 tablespoon ground cinnamon
• 1 cup heavy whipping cream
• 2 tablespoons powdered sugar
• 1/2 teaspoon ground cinnamon
• 1/2 teaspoon vanilla