3/4 cups chunky peanut butter
3/4 cups marshmallow cream
3 Tbl. milk
3 Tbl. powdered sugar
Cream all ingredients together. Spread between store bought cookies or homemade cookies. These make delicious sandwich cookies at very little cost. I made them with homemade sugar cookies. It made enough to make about 20 sandwich 3" cookies. I also used them with store bought cookies. The homemade ones were the best, of course, but it also improved the taste of the store bought cookies.
This is a recipe that's fun to play with. Try melting 3/4 cups of chocolate chips to use in place of the peanut butter or the marshmallow cream. When making this change you may need to add just a little more powdered sugar to get the creamy texture. You can also use white chocolate chips, butterscotch chips, etc. Just play around with different flavors. If you have children, this is a good way for them to help and start appreciating the fun you can have in the kitchen.