Put the grits in a medium pot, whisk in 5 cups cold water and season with salt. Bring to a simmer over medium-high heat. Cover and cook, stirring frequently and adding additional water as needed, until they are creamy and tender, 45 minutes to an hour or longer. Add butter to taste and season again with salt.
Meanwhile, prepare a hot fire in a charcoal grill.
Put the radicchio on a large plate and drizzle with olive oil, sprinkle all over with sugar and season generously with salt and pepper. When the flame has died down, the coals are completely covered with ash and the grill is very hot, grill the radicchio, starting with the cut side down until it is slightly charred on the outside and warm and starting to wilt on the interior, 2 to 3 minutes on each side.
Put the mozzarella in a bowl of hot, salted water for 30 seconds to heat and then drain.
Divide the grits among four warm plates, and arrange the cheese and radicchio alongside. Drizzle with balsamic and sprinkle with sea salt.

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Nutrition Facts

Per Serving Per 100 g

Amount Per 1 Serving
Calories	266.33 Kcal (1115 kJ)
Calories from fat	7.02 Kcal
		% Daily Value*
Total Fat	0.78g	1%
Cholesterol	15.31mg	5%
Sodium	633.06mg	26%
Potassium	157.21mg	3%
Total Carbs	34.68g	12%
Sugars	1.59g	6%
Dietary Fiber	3.69g	15%
Protein	30.37g	61%
Vitamin C	0.3mg	1%
Iron	1.2mg	7%
Calcium	819.5mg	82%

Amount Per 100 g
Calories	207.51 Kcal (869 kJ)
Calories from fat	5.47 Kcal
		% Daily Value*
Total Fat	0.61g	1%
Cholesterol	11.93mg	5%
Sodium	493.25mg	26%
Potassium	122.49mg	3%
Total Carbs	27.02g	12%
Sugars	1.24g	6%
Dietary Fiber	2.88g	15%
Protein	23.66g	61%
Vitamin C	0.2mg	1%
Iron	0.9mg	7%
Calcium	638.5mg	82%

* Percent Daily Values are based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Find out how many calories should you eat.