Apple Crisp Bars

A simple baked good can always please your craving...like these apple crisp bars !

Ingredients

For the Crust:

1 cup unsalted butter, at room temperature
1/2 cup dark brown sugar, packed
1 teaspoon pure vanilla extract
2 1/4 cups all-purpose flour

For the Filling:

3 large gala apples, peeled, cored and thinly sliced
1/4 cup dark brown sugar
1/2 teaspoon ground cinnamon
1/4 teaspoon allspice
1/4 teaspoon nutmeg

For the Streusel:

1/2 cup old fashioned rolled oats
1/2 cup all-purpose flour
1/4 cup finely chopped walnuts
1 teaspoon ground cinnamon
1/4 cup dark brown sugar
1/4 teaspoon salt
1/4 cup butter, cold and cubed

Preheat oven to 350°F. Line a 9×13 pan with parchment paper, leaving extra hanging over the ends, spray paper and sides of dish with cooking spray containing flour.
In a large mixing bowl, beat together the butter and brown sugar until light and fluffy, about 2-3 minutes. Add vanilla, mix until combined. Add flour and mix until combined and dough is crumbly. Press dough evenly into bottom of prepared pan.
Bake for 12-15 minutes, until dough is slightly puffed. Remove from oven and cool on a wire rack while preparing apples and topping. Maintain oven temperature.
Evenly layer sliced apples over pre-baked crust. Combine brown sugar, cinnamon, allspice and nutmeg. Sprinkle evenly over apples.
In a medium bowl, combine oats, flour, walnuts, cinnamon, sugar, and salt. Add butter and cut with a pastry cutter or form until mixture forms pea-sized crumbs.
Sprinkle streusel evenly over apple filling.
Bake bars at 350°F for 25 minutes, or until streusel is golden and apples are softened.
Cool bars completely on a wire cooling rack. Cut into squares and serve.