Grandma'S Butterscotch Pie

• 2 c. packed dark brown sugar
• 1/2 c. margarine
• 5 eggs, separated
• 4 Tbsp. flour
• 2 Tbsp. cornstarch
• 4 c. milk
• 1 baked 10-inch pie shell
• 2/3 c. sugar
• 1/2 tsp. cream of tartar

1. Stir brown sugar and margarine in heavy skillet over medium heat until sugar begins to caramelize, stirring constantly.
2. Mix flour, cornstarch, egg yolks and a small amount of milk in a bowl. Stir in remaining milk gradually.
3. Very slowly stir into carmelized mixture.
4. Cook until thickened, stirring constantly. Pour into pie shell.
5. Beat egg whites and cream of tartar in mixer bowl until soft peaks form.
6. Add sugar slowly, beating constantly, until stiff peaks form.
7. Spread over pie.
8. Seal to edge of crust.
9. Bake at 350u0b0 until meringue is lightly browned.

brown sugar, margarine, eggs, flour, cornstarch, milk, shell, sugar, cream of tartar

Taken from www.cookbooks.com/Recipe-Details.aspx?id=437670 (may not work)