M&M’s is adding three new flavors to the mix. English Toffee Peanut, Mexican Jalapeno Peanut and Thai Coconut Peanut versions of the popular treats are hitting the supermarket shelves this week. To be clear, the company will not be slipping jalapeno pepper candies in the regular mix. They will be sold separately, in clearly-marked bags. Fans will be able to vote online for their favorites.