Lay half of the Ritz crackers on a flat surface. Place about 1 tablespoon of peanut butter on each cracker. Top with remaining crackers and gently press down to spread peanut butter to the edges.
Melt almond bark in a microwave safe bowl in 30 second increments, stirring after each time, until smooth.
Use a fork to dip each cracker sandwich in the melted chocolate and coat evenly. Let excess chocolate drip off and then transfer to a piece of parchment paper. Top with sprinkles.