1 1/2 c. cold milk
1/2 c. creamy peanut butter
1 (4-serving size) pkg. Jello instant
24 graham crackers
Add milk gradually to peanut butter in a deep bowl, blending until smooth. Adding pudding mix, beat slowly at lowest speed until well-blended (about 2 minutes). Let stand 5 minutes. Spread 1/2 inch thick on 12 crackers. Top with remaining crackers. Freeze three hours before eating.