The phrase "truffle mixture" refers to a combination or blend of ingredients used to make truffles, which are delicious chocolate treats. Full definition
Using 1 tablespoon of truffle mixture per truffle, gently roll into a ball between the palms of your hands, then roll in any coating of choice. (golubkakitchen.com)
Roll chilled truffle mixture into 12 heaping tablespoon - sized balls, and place back in the freezer for 10 more minutes. (irunonnutrition.com)
The chocolate cream mixture goes into the refrigerator, and the chocolate truffle mixture goes into the freezer. (melaniecooks.com)