Cut eat truffle in half and lay most of the truffles cut side down in a grid pattern in the baking dish. Roughly chop remaining truffles and set aside.
In a microwave safe bowl combine chocolate and sweetened condensed milk. Microwave for 30 seconds, stir, and continue to microwave and stir in 15 second intervals until the chocolate is completely melted.
Carefully scoop/pour the chocolate mixture over the truffles. Smooth the top with a spatula and tap the pan on the countertop a few times to make sure the chocolate gets in between the truffles. Sprinkle the chopped truffles over the top.
Refrigerate pan for 2 hours and cut into bite-sized pieces.