Derby Pie Bars

INGREDIENTS

1/4 cup powdered sugar
1 cup all-purpose flour
Pinch of salt
1/2 cup (1 stick) cold unsalted butter, cubed

For the filling
12 tablespoons (1 + 1/2 sticks) unsalted butter, softened
1 1/2 cups sugar
3 eggs
3/4 cup all-purpose flour
1/8 teaspoon salt
3 tablespoons bourbon or whiskey (or more to taste)
1 1/2 cups chocolate chips
1 1/2 cups chopped walnuts
Vanilla ice cream, for serving

See full instructions : www.thekitchn.com