4 oz dutch process cocoa powder (finely chopped nuts, and/or toasted coconut, for coating truffles)
8 oz semisweet or bittersweet chocolate (chopped fine)
Place the 10 ounces of chocolate and butter in a medium size glass mixing bowl. Microwave for 30 seconds. Remove and stir, and repeat this process 1 more time. Set aside.
Heat the heavy cream and corn syrup in a small saucepan over medium heat until simmering. Remove from the heat and pour the mixture over the melted chocolate mixture; let stand for 2 minutes.
Using a rubber spatula, stir gently, starting in the middle of bowl and working in concentric circles until all chocolate is melted and mixture is smooth and creamy. Gently stir in the brandy. Pour the mixture into an 8 by 8-inch glass baking dish and place in the refrigerator for 1 hour.
Using a melon baller, scoop chocolate onto a sheet pan lined with parchment paper and return to the refrigerator for 30 minutes.
Place the cocoa powder, nuts, and/or toasted coconut each in its own pie pan and set aside.
Dip an ice cream scoop into the chocolate and turn upside down to remove excess chocolate. Place truffles 1 at time into the scoop and roll around until coated. Then place the truffle into the dish with either cocoa powder, nuts or coconut.
Move the truffle around to coat; leave truffle in the coating for 10 to 15 seconds before removing. In the meantime, continue placing the chocolate-coated truffles in the cocoa or other secondary coating. After 10 to 15 seconds, remove the truffle to a parchment lined sheet pan. Repeat until all truffles are coated.
Allow to set in a cool dry place for at least 1 hour; or store in an airtight container in the refrigerator. Truffles are best when served at room temperature.