This is so simple, you can close your eyes and make it.
- Cream butter and sugar together. Mix in peanut butter evenly. Add eggs bit by bit. Stir in all the sifted flour and baking soda. Add extract and fold evenly.
- Drop on to baking trays, sprayed with cooking oil.
- Bake for 10-15 minutes in a 350F or 180C oven.