1. To prepare grits, combine grits, cheddar, garlic powder, salt, and 1/2 teaspoon pepper in a large bowl; keep warm.
2. To prepare eggs, heat a small skillet over medium heat. Coat pan with cooking spray. Break 2 eggs in pan; cook 1 minute or until whites are set. Add 1/4 cup ice cubes to pan; cover and cook 2 minutes or until eggs are done. Remove from pan. Repeat procedure with remaining 2 eggs and 1/4 cup ice. Serve eggs over grits. Garnish with black pepper and chives, if desired.