In a large mixing bowl beat butter and peanut butter with a mixer on medium speed until combined. Add the granulated sugar, brown sugar, baking soda and baking powder and beat until combined. Mix in the eggs and vanilla and then beat in as much of the flour as you can with a mixer. Stir in any remaining flour.
Using your hands shape dough into 1-inch balls and place 2 inches apart on a greased cookie sheet. Use the tines of a fork to lightly push down and make criss-cross lines in the cookies. Bake at 375 degrees for 7-8 minutes. Remove from oven and cool slightly on a wire rack.
Once the cookies are cool enough to handle spread marshmallow crème on one cookie, top with a piece of chocolate bar and then another cookie to create a peanut butter cookie s’more!