Bake peanut butter chocolate chip cookies according to recipe instructions. Allow to cool completely. Prepare old fashioned vanilla ice cream recipe according to recipe instructions.
Place a large scoop of ice cream on the bottom of one cookie and carefully spread to the edges of the cookie. Top with a second cookie and press gently to make sure secure while not damaging the cookie structure.
Place prepared ice cream sandwich on a parchment lined rimmed baking sheet. Working quickly, repeat until all sandwiches are made. Cover tightly with plastic wrap and place into the freezer for at least 15 minutes for the ice cream to become firm. Once completely firm, remove from the baking sheet and place into an airtight freezer-safe container. Return to the freezer for up to 2 months.
Ice Cream Sandwiches should be stored in a freezer-safe airtight container. They should keep well in the freezer for up to 2 months. While assembling the ice cream sandwiches, place them in the freezer if they begin to melt.