Spread half of the Ritz crackers with peanut butter (about a teaspoon each). Spread the other half with the marshmallow creme. The marshmallow creme will be very sticky and hard to spread. Just place a blob in the middle. It will spread out when you sandwich them together!

Sandwich the peanut butter and marshmallow crackers together and place them on a parchment lined baking sheet. Place the baking sheet in the freezer for about 30 minutes.

In the meantime, place the chocolate in a double boiler or microwave safe container and melt until smooth.

Remove the cookies from the freezer and dip them halfway in the chocolate. Sprinkle with sprinkles if desired. Lay them back on the baking sheet and allow to dry. Store the crackers in an airtight container, separated by parchment paper, in the fridge for up to 5 days. Serve cold or at room temperature.