Butterscotch Pie

INGREDIENTS

(9-inch) baked pie crust (recipe below)

8 tbsp

unsalted butter (1 stick)

1 cup

dark brown sugar (packed)

1 cup

boiling water

3 tbsp

cornstarch or arrowroot

2 tbsp

unbleached all-purpose flour

1/2 tsp

salt

1 2/3 cups

milk

egg yolks

1 tsp

pure vanilla extract

For the topping:

1 cup

heavy whipping cream

2 tbsp

confectioners sugar

1/2 cup

roasted, salted cashews, chopped