Ingredients
Equipment
Method
Make the shells
- Set a 12-cavity, 2 1/2-inch silicone half-sphere mold on a rimmed baking sheet.
- Microwave the semisweet chocolate melting wafers in a microwave-safe bowl at 50% power in 30-second bursts, stirring after each, until smooth, about 1 1/2 to 2 minutes.
- Brush a thin, even layer of melted wafers over the inside of each cavity, including the rims, and chill for 10 minutes.
- Brush on a second layer and chill for 10 minutes, until firm.
Assemble and fill
- Gently peel the silicone away from the shells.
- Warm a small plate with hot water and dry it.
- Briefly touch each shell rim to the plate to level it.
- Fill 6 shells with one packet of hot cocoa mix and 2 tablespoons of mini marshmallows each.
- If the melted chocolate has thickened, microwave it at 50% power in 10-second bursts, stirring, until fluid.
- Brush a thin line of melted chocolate around the rim of each filled shell, place an empty shell on top, and hold until sealed.
Decorate and serve
- Drizzle the remaining melted chocolate over the bombs.
- Add the holiday sprinkles and chill for 10 minutes, until set.
- Heat the whole milk in a 2-quart saucepan over medium heat for 6 to 8 minutes, stirring often, until steaming but not boiling.
- Put one bomb in each mug.
- Pour 1 cup hot milk over each bomb.
- Stir once the shell opens.
Notes
For neat shells, make sure the chocolate coats the rims evenly before chilling. Store in an airtight container in the refrigerator for up to 3 days; freezing is not recommended. For a dairy-free option, use dairy-free chocolate wafers, cocoa mix, and milk.
