Grease bottom and sides of 9-inch square pan with shortening, or spray with cooking spray.
Step
2
In 3-quart saucepan, heat peanut butter, butter and marshmallows, stirring constantly, until melted; remove from heat. Gently stir in cereal, 1 cup at a time, until evenly coated.
Step
3
Press mixture evenly in pan with buttered spatula. Cool completely, about 30 minutes. For bars, cut into 6 rows by 3 rows.
Hate to measure sticky peanut butter? Just lightly spray the measuring cup with cooking spray and the peanut butter wil slip right out.
Microwave Directions: Grease bottom and sides of 9-inch square pan with shortening, or spray with cooking spray. In 3-quart microwavable bowl, microwave peanut butter, butter, and marshmallows uncovered on High 1 minute; stir. Microwave 30 seconds longer or until mixture can be stirred smooth. Gently stir in cereal, 1 cup at a time, until evenly coated. Press mixture evenly in pan with buttered spatula. Cool completely, about 30 minutes. For bars, cut into 6 rows by 3 rows.