2 c. pretzels, crushed
1 stick butter
8 oz. pkg. cream cheese
9 oz. Cool Whip topping
1 c. sugar
3 c. mashed sweet potatoes
1 c. sugar
1 egg, beaten
2 tbsp. cornstarch
1 tsp. vanilla

Mix pretzels and butter and pat into 9 x 13 baking dish.

Bake 15 minutes at 350°F. Mix cream cheese, Cool Whip and sugar. Spread on first layer. Mix mashed sweet potatoes, 1 cup sugar, egg, cornstarch and vanilla. Beat real good and add to second layer. Let set overnight.