Mix brownie mix according to package directions with the required oil, eggs and water. Using a cookie scoop, scoop the batter into a well-greased mini muffin pan. (I usually can make about 30 so you may need to fill a little bit of a second pan.)
Bake brownie bites at 350° for about 13-15 minutes or until a toothpick inserted in the middle comes out clean.
Immediately after removing the brownie bites from the oven, press an indention into each one, using the back of a 1/2 tsp measuring spoon. While the brownies are still warm, place 3 semi-sweet chocolate chips into each center. Let the chocolate chips sit for a few minutes until softened, then gently press a maraschino cherry on top of the melted chocolate in the center.
Let brownies cool completely and then make the frosting. To make the frosting, use an electric mixer to beat the butter, cream cheese and powdered sugar. Once the mixture is well combined, add the reserved cherry juice and beat until smooth. Frost the brownie bites and enjoy! (I used this Wilton Dessert Decorator for the frosting, but you can just frost them with knife or place the frosting in a Ziplock bag and cut a small opening in one of the bottom corners to squeeze the frosting out of.)