Billionaire Bars

Ingredients

Butter Cookie Base

1/2 cup white sugar

2 Tbsp light brown sugar

tiny pinch of salt

2 1/4 cups flour

1 cup unsalted butter

Billionaire Filling

1/2 cup unsalted butter, cut into chunks

1/2 cup light brown sugar

1 (14 oz.) can sweetened condensed milk

1 tsp pure vanilla

Billionaire Topping

2 cups milk chocolate, chopped

1/2 cup white chocolate chips or coarsely chopped white chocolate