2/3 c. creamy peanut butter
12 oz. cream cheese
14 oz. can sweetened condensed milk
1/3 c. lemon juice
1 tsp. vanilla
4 1/2 oz. carton Cool Whip

Cream peanut butter and cream cheese until fluffy. Add sweetened condensed milk, lemon juice and vanilla. Fold in Cool Whip. Put in 1 (9-inch) graham cracker pie shell or 2 (6 inch) graham cracker pie shells. Chill at least 2 hours before serving.