Melt the chocolate in a microwave or double boiler. Pour the chocolate onto the lined sheet tray and use an offset spatula to spread out evenly, filling the whole pan. Evenly sprinkle the toppings on top.
Pop in the fridge or freezer until totally firm, about 1 hour. Break into pieces.
Emma is a writer and recipe developer at Food52. Before this, she worked a lot of odd jobs, all at the same time. Think: stir-frying noodles "on the fly," baking dozens of pastries at 3 a.m., reviewing restaurants, and writing articles about everything from how to use leftover mashed potatoes to the history of pies in North Carolina. Now she lives in Maplewood, New Jersey with her husband and their cat, Butter. Stay tuned every Tuesday for Emma's cooking column, Big Little Recipes, all about big flavor and little ingredient lists. And see what she's up to on Instagram and Twitter at @emmalaperruque.