Bring to a boil, stirring often. Reduce the heat to a simmer and cook for 15-20 minutes, stirring frequently.
Stir in 4 ounces of the Cheddar cheese. Serve immediately topped with remaining cheese and bacon to garnish.
6 ounces extra sharp Cheddar cheese
Notes
Either quick grits or old-fashioned (stone ground) grits work fine in the recipe. Stone ground grits are my favorite, but they take quite a bit longer to cook.
Leftover grits store really well in the fridge for several days. They'll likely need thinning with a bit of water when reheating. They're easily reheated in the microwave or on the stovetop (stir often to prevent sticking).