Preheat the oven to 190 degrees C.
In a large bowl, combine peanut butter, margarine, sugar together. Add the eggs and vanilla. Stir in flour, baking powder and soda, knead the dough.
Make cookies of any shape, place it at a distance from each other on a baking sheet.
Bake for 12 to 15 minutes in a preheated oven. Allow to cool completely.