Strawberry Pretzel Jello Salad
["2 c. crushed pretzel sticks", "3 Tbsp. sugar", "3/4 c. melted margarine", "8 oz. cream cheese", "1 c. powdered sugar", "1 large container Cool Whip", "1 large strawberry jello", "2 c. boiling water", "2 pkg. frozen strawberries (10 oz.)", "1 small can crushed pineapple, drained (optional)"]
["Combine crushed pretzel sticks, sugar and melted margarine. Spread in a 9 x 13-inch pan.", "Bake at 400\u00b0 for 7 minutes.", "Cool. Mix cream cheese, powdered sugar and Cool Whip.", "Beat these ingredients and spread on crust.", "Dissolve strawberry jello with boiling water.", "Add strawberries and pineapple to jello.", "Chill these ingredients until slightly jelled, then pour over cream cheese mixture.", "Chill 4 hours."]
["sugar", "margarine", "cream cheese", "powdered sugar", "strawberry jello", "boiling water", "frozen strawberries", "pineapple"]