01 - Slice the oranges, lemon, and lime in half horizontally to expose the juicy pulp.
02 - Sprinkle sugar evenly over the cut surfaces of the fruit halves.
03 - Place the citrus halves cut side down on a medium-high heat grill or cast iron skillet. Cook for approximately 2 to 3 minutes until the sugars melt and caramelize, forming a charred surface.
04 - Remove from heat and serve immediately to enjoy the enhanced bright and smoky citrus flavors.