Butterscotch Meringue Pie without milk

1 cup dark brown sugar 1/4 cup cornstarch 1/4 teaspoon salt 4 cups half-and-half cream 5 egg yolks, seperated slightly beaten save whites for Meringue 1/4 cup[...]

3 ounces cold butter , cut into cubes 4 ounces flour 1 ounce sugar 2 ounces ground hazelnuts 2 -3 tablespoons ice water 1 egg yolk 1 For crust: Put butter,[...]