In large saucepan over medium heat, stir together brown sugar and corn syrup until sugar dissolves and mixture is warm. Remove from heat; blend in peanut butter. Stir in cereal and raisins until well coated. Press into lightly greased 8x8" baking pan. Cool until firm. Cut into 24 bars. Store in airtight container.
From Favorite All Time Recipes - Homemade Holiday Cookies, Publication International, Ltd., Isbn 0-7853-0147-X.