In a large bowl, cream together butter, peanut butter, and brown sugar until light and fluffy. Beat in eggs one at a time, then stir in vanilla.
In a separate bowl, combine flour, bran, baking soda, and salt. Gradually stir into the creamed mixture.
Fold in raisins. Drop by teaspoons onto ungreased cookie sheets.
Bake for 10 to 12 minutes in preheated oven. Allow cookies to cool on baking sheet for 5 minutes before transferring to a wire rack to cool completely.
Interesting Facts
The peanut butter in this recipe adds protein and healthy fats.
The wheat bran in this recipe adds fiber and nutrients.
Raisins are a great source of iron and other essential vitamins and minerals.