AMISH BUTTERSCOTCH CREAM PIE

Ingredients 1 1/2 cup(s) packed brown sugar. 4 tablespoon(s) cornstarch. 3 tablespoon(s) all-purpose flour. 2 cup(s) milk. 3 egg yolks. 2 tablespoon(s) butter. 1 teaspoon vanilla extract. 1 pie shell,…