These Sour Cream Apple Square bars are filled with apples, a hint of cinnamon and have an amazing shortbread crust. Slice these bars warm or at room temperature into oversized squares and serve with whipped cream or ice cream. They are the most perfect fall dessert!
Preheat oven to 350°F. Spray 9x13-inch pan with cooking spray.
In the bowl of your mixer, combine flour, sugar, and butter. Mix at medium speed until crumbly. Stir in walnuts.
2 cups flour, 2 cups brown sugar, ½ cup unsalted butter, softened, 1 cup chopped walnuts
Measure 2 ¾ cups of flour mixture into prepared 9x13-inch pan. Press the mixture into the pan using your fingers or a small measuring cup. Set aside.
Add the sour cream, cinnamon, vanilla, baking soda, egg, and salt to the remaining flour mixture in the bowl of your mixer. Mix on low just until combined. Stir in apples.
1 cup sour cream, 1 ½ teaspoons cinnamon, 1 teaspoon vanilla, 1 teaspoon baking soda, 1 egg, ½ teaspoon salt, 2 cups chopped apple, peeled and cored
Pour apple mixture on top of the pressed flour mixture in your 9x13-inch pan. Spread with a spoon to create an even layer.
Bake in 350°F oven for 35-40 minutes. Let cool in pan. Serve topped with whipped cream or vanilla ice cream.