Aunt Hattie'S Cheesecake
["30 sq. graham crackers, crushed", "1 Tbsp. powdered sugar", "1/4 c. margarine, melted", "1 small pkg. lemon gelatin", "1 c. boiling water", "1 can condensed milk, chilled", "2 Tbsp. lemon juice", "1 (8 oz.) cream cheese, softened", "1 c. sugar", "1 1/2 tsp. vanilla"]
["Combine the first three ingredients and press into a 9 x 13-inch pan, reserving some to top cheesecake.", "Dissolve gelatin in boiling water; let cool until partly set."]
["graham crackers", "powdered sugar", "margarine", "lemon gelatin", "boiling water", "condensed milk", "lemon juice", "cream cheese", "sugar", "vanilla"]