Chocolate Hazelnut Pie with Frangelico – We’re Baking with Abby Dodge!

1/4 cup butter

1/2 cup finely chopped hazelnuts

6 ounces bittersweet chocolate chips or chopped chocolate

6 ounces white chocolate chips or chopped chocolate

2 ounces (4 Tbsp) unsalted butter, cut into 4 pieces

1 cup half and half

1/2 tsp pure vanilla extract

Pinch table salt

1 package (8 ounces) mascarpone cheese

3/4 cup heavy cream

1/4 cup sugar

2 Tbsp Frangelico hazelnut liqueur

1/2 teaspoon pure vanilla extract