Cream Peanut Butter, Shortening, and Sugars. Add Eggs, Milk and Vanilla. Mix Well
Add Flour, Baking Soda, and Salt
Roll Dough into small dough balls and roll them in sugar. Place into small muffin cup.
Bake at 375 for 11 minutes
Immediately after removing from oven push 3 marshmallows into each cookie, then pop them in the oven for 2-3 more minutes, just long enough to melt the marshmallows!