Filling
1 cup (6-ounce package) butterscotch pieces, melted
1 cup finely chopped salted peanuts
1/4 cup peanut butter
1/3 cup sweetened condensed milk
1 tablespoon softened butter
1 teaspoon vanilla extract

Dough
1/4 cup peanut butter
1/2 cup softened butter
1 cup flour
1/2 cup sugar
1/2 teaspoon salt
1/2 cup quick-cooking rolled oats

Combine all filling ingredients. Chill while preparing dough.

In large mixing bowl, combine ingredients for dough. Blend well with mixer. Divide dough in half. Pat out each half on wax paper to a 12 x 6-inch rectangle. Spoon filling down center of each rectangle. Fold one side of dough around filling and then the other. Gently shape into a log. Wrap; chill at least 2 hours.

Preheat oven to 350 degrees F. Cut dough into 1/4-inch slices. Place on ungreased cookie sheets. Bake for 12 to 15 minutes. Cool 1 minute before removing from cookie sheets.

Makes about 6 dozen.