CHOP OR BREAK UP BAKING CHOCOLATE AND PLACE IN A MEDIUM SIZED BOWL. HEAT THE CREAM OVER LOW HEAT UNTIL IT JUST SIMMERS (OR IN THE MICROWAVE FOR ABOUT 45 SECONDS). POUR OVER THE CHOCOLATE. STIR UNTIL MELTED AND SMOOTH. (IF IT’S HAVING A HARD TIME MELTING, PLACE IT IN THE MICROWAVE FOR ABOUT 15 SECONDS.) CHILL CHOCOLATE MIXTURE UNTIL HARDENED, AT LEAST 2 HOURS.
PREHEAT OVEN TO 350 °F. LINE MUFFIN TINS WITH CUPCAKE LINERS.
MIX UP CAKE BATTER ACCORDING TO THE BOX DIRECTIONS. FILL EACH LINER ABOUT 1/2 FULL OF BATTER. (YOU DON’T WANT TO FILL THEM AS FULL AS 2/3, OR THEY WILL SPILL OVER. A LITTLE LESS THAN IS CALLED FOR ON THE BOX IS GOOD.)
REMOVE CHOCOLATE GANACHE FROM THE REFRIGERATOR. SCOOP 1 TABLESPOON BALLS (I USED A COOKIE SCOOP) AND PLACE ONE BALL IN THE CENTER OF EACH CUPCAKE BATTER.
BAKE 20-23 MINUTES, UNTIL A TOOTHPICK INSERTED IN THE SIDE OF THE CUPCAKE (NOT THE CENTER!) COMES OUT CLEAN. COOL FOR JUST A FEW MINUTES IN THE PANS.
WHEN READY TO SERVE, REMOVE THE CUPCAKES FROM THE PAN AND REMOVE THE LINERS. TURN UPSIDE DOWN ON A PLATE AND SPRINKLE WITH POWDERED SUGAR.
THESE ARE BEST SERVED WARM. IF THEY COOL OFF, JUST HEAT THEM FOR A FEW SECONDS IN THE MICROWAVE TO HEAT.