Classic chocolate M&M's will always reign supreme, but white chocolate fans are finally getting their moment. A new addition to the M&M's family, White Chocolate Peanut, is officially on shelves as of Sept. 14. Back in May, M&M's announced plans for the new flavour, and we've been waiting (not so patiently) for the arrival. Regular White Chocolate M&M's were introduced for the first time ever last year, and the new peanut version is the next glorious option. There's never a dull moment in the M&M's world — look out for a peanut flavour contest in 2019 that includes jalapeño and coconut.