Twix - Milk chocolate (35%) covered caramel (32%) and biscuit (26%). M&M's Peanut - Milk chocolate (48%) covered peanuts (24%) in a sugar shell. M&M'S Choco - Milk chocolate (68%) in a sugar shell. Mars - Milk chocolate (36%) with soft nougat (34%) and caramel centre (29%). M&M'S Crispy - Milk chocolate (55%) with a rice centre (16%) in a sugar shell.