I recommend baking cookies after the cookie dough is in the refrigerator for at least 24 - 48 hours. I also recommend using a baking mat or parchment paper to bake on. Make sure you use sea salt and not regular salt. Trader Joe's chocolate gems are a great alternative to plain M&Ms. I used organic sugar, Kerrygold unsalted butter and Ghirardelli semi-sweet chocolate chips.