Apple Pie Bars

INGREDIENTS

4 sticks

butter (1 pound), unsalted, at room temperature

3/4 cup

granulated sugar

1/2 cup

light brown sugar, lightly packed

2 tsp

pure vanilla extract

4 cups

all-purpose flour

1 1/2 tsp

kosher salt

1/2 cup

chopped walnuts

1 tsp

ground cinnamon

1 1/2 lb

Granny Smith apples, peeled, quartered, cored and sliced 1/8 inch thick (3 large)

1 1/2 lb

Golden Delicious apples, peeled, quartered, cored and sliced 1/8 inch thick (3 large)

2 tbsp

freshly squeezed lemon juice

1/4 cup

granulated sugar

1 tsp

ground cinnamon

1/8 tsp

ground nutmeg

4 tbsp

butter, unsalted