1 1/2 c. cold milk
1/2 c. peanut butter
1 (4 oz.) pkg. instant pudding
24 graham crackers or chocolate wafers
Add milk gradually to peanut butter in a deep, narrow bottom bowl, blending until smooth. Add pudding mix and beat slowly with hand beater or at lowest speed of electric mixer until well blended, about 2 minutes. Let stand 5 minutes. Spread filling 1/2 inch thick on 12 of the crackers or wafers. Top with remaining cracker. Freeze until firm, about 3 hours.