1 lb. pretzels, crushed fine
1 1/2 sticks butter, melted
1/2 - 3/4 c. sugar

Mix together and press thinly in 9 x 12 inch cake pan. Bake at 350 degrees for 10-15 minutes. Set aside. Mix 16 ounce non-dairy whipped cream topping and 2 pounds imitation sour cream. Blend by hand. Spread in pan. Chill. Top with raspberry or strawberry pie filling.