Amish365.com offers a recipe for Amish butterscotch pie that calls for eggs, brown sugar, flour, milk, butter and vanilla extract. The recipe involves making a filling, pouring the filling into a prepared pie shell, baking the pie and topping it with whipped cream.
Take a frozen or refrigerated pre-made 9-inch pie shell and set it out. Mix 3/4 cup of brown sugar with 1 1/2 cups of water in a large saucepan, bringing the mixture to a boil over medium heat. Cook for about three and a half minutes until thickened, then set aside.
Beat 2 eggs in a large mixing bowl until frothy, then add 1/3 cup of all-purpose flour and continue mixing until incorporated. Add 3/4 cup of brown sugar and mix until well combined. Slowly pour in 2 cups of scalded milk while continuing to stir. Put the pan with the sugar syrup back over low heat to loosen its consistency. Transfer the egg and milk mixture to the syrup while stirring with a rubber spatula.
Set the pan over medium-low heat and cook for three to five minutes until the mixture begins to bubble and thicken. Mix in 1/2 teaspoon of salt, 1/4 cup of butter and 1 tablespoon of vanilla extract, let the mixture cool for 15 minutes, then transfer to the pie shell. Chill the pie in a refrigerator until it sets, then top it with whipped cream.