Prepare the boxed brownie mix according to the directions on the package. Add one additional egg (yolk only) along with the other eggs and replace the water with the same amount of liquid from the Maraschino cherry jar.
Once the brownies have been baked, allow them to cool for 15 minutes.
Scoop out about 2 teaspoons of the brownies out of the baking dish using a spoon. Wrap a Maraschino cherry in the brownie until it's completely covered and set it aside.
Cover a large baking sheet with parchment paper.
Once the brownie bites with a cherry center are assembled, prepare your double boiler by placing a heat resistant glass or metal bowl into a pan with about 1 inch of water. Heat the water on medium-low. Place your chocolate in the bowl and stir while the chocolate melts. Be careful not splash the water from the pan into the bowl with the chocolate.
Drop a brownie bite into the melted chocolate and roll it around until it's covered. Remove it with a fork and place it on the parchment paper. Add sprinkle topping before the chocolate dries. Repeat for each brownie bite.
Refrigerate for a minimum of 2 hours before serving.