Place 2 cups of chocolate chips in a microwave safe bowl. Microwave the chocolate chips on 50% power for 3-5 minutes. Stir every 30 seconds until the chips have melted.
Scoop the chocolate into the half circles on the silicone mold using a spoon. Spread the chocolate evenly onto the entire cavity until it is completely coated in the melted chocolate. Use 2 molds to make 12 half circles of chocolate.
Carefully place the silicone molds into a freezer for 2-3 minutes and then remove when hardened.
Reheat the melted chocolate chips and add a second layer of melted chocolate to the half circles, especially around the edges.
Freeze the chocolate in the molds again for another minute.
Carefully remove the chocolate from the silicone molds.
Add 1 tablespoon of hot chocolate mix and several mini M&M’s to six of the half circles.
Once the hot cocoa bombs are filled it is time to close and seal them. Reheat the chocolate chips if they have hardened and add 4 tablespoons of the melted chocolate to a decorating bag.
Cut a small tip off the decorating bag and frost the edge of one half chocolate circle. Add an empty chocolate circle on top to make a sphere and hold it in place for 15 seconds. The chocolate will act as a glue to hold both sides together.
Place hot cocoa bombs onto a plate, and drizzle with the remaining melted chocolate from the decorating bag. Top with mini M&M’s which will stick to the melted chocolate.
When the chocolate has hardened, these are ready to use! Place an M&M Hot Chocolate Bomb into a mug and pour warm or hot milk over the top. Watch the bomb melt and stir to combine.