Prepare the Brownies:

1. Bake the brownies:
   • Prepare and bake the brownies according to the package instructions. Let them cool completely.
2. Crumble the brownies:
   • Once cooled, crumble the brownies into a large mixing bowl. The texture should be moist and crumbly.
3. Add binding (if needed):
   • If the brownie crumbs are too dry to hold together, mix in cream cheese or frosting, 1 tablespoon at a time, until the mixture can easily be rolled into balls.

Shape the Truffles:

4. Roll into balls:
   • Scoop about 1 tablespoon of the brownie mixture and roll it between your hands to form a ball. Repeat until all the mixture is used.
5. Chill the truffles:
   • Place the brownie balls on a parchment-lined tray and chill in the refrigerator for 30 minutes, or until firm.

Coat the Truffles:

6. Melt the chocolate:
   • Melt the semi-sweet or dark chocolate in a microwave-safe bowl in 30-second intervals, stirring after each interval, until smooth.
7. Dip the truffles:
   • Using a fork or a truffle-dipping tool, dip each brownie ball into the melted chocolate, letting the excess drip off. Place back on the parchment-lined tray.
8. Garnish (optional):
   • While the chocolate is still wet, sprinkle with your chosen toppings, such as sprinkles, nuts, or crushed cookies.

Set and Serve:

9. Let the coating set:
   • Allow the truffles to set at room temperature or refrigerate until the chocolate hardens.
10. Serve:
    • Transfer the truffles to a serving platter or store in an airtight container.