Step 1

HEAT oven to 350°F. Coat 13x9-inch baking pan with no-stick spray.

Step 2

MIX together graham cracker crumbs and margarine with a fork until evenly moistened. Press evenly into bottom of prepared pan.

Step 3

BEAT cream cheese until smooth using an electric mixer. Gradually beat in sweetened condensed milk. Add eggs, lemon juice, vanilla and flour. Mix well. Pour over graham cracker crust.

Step 4

STIR jam until smooth. Drop by small spoonfuls over surface of filling. With a knife, swirl jam gently through filling to create marble effect.

Step 5

BAKE 25 to 30 minutes or until center is set. Cool to room temperature. Chill.