Both are similar Girl Scout cookies baked in different bakeries, thus the different names. The Little Brownie Bakery calls their peanut butter cookie Tagalongs. ABC Smart Cookies bakery calls them Peanut Butter Patties. What you get depends on where the Girl Scouts in your area place their order. They are slightly different in a couple of ways. Tagalongs have more layers of peanut butter inside the cookies. Peanut Butter Patties have a vanilla flavor and a lighter peanut butter layer.