Oct 14, Bring to sauce to a bubble and thicken, about minutes. Once sauce is thick, remove from heat and mix in mustard and cheddar cheese. Feb 1, In fact, I almost didn't post this recipe today, as there are SOOOO many mac and cheese recipes available, and most people already have their. May 18, THE Baked Mac and Cheese recipe. An insane cheesy sauce, perfectly cooked macaroni and a golden, buttery, crunchy topping. The ultimate.