Grilled Italian Sausage with Sweet and Sour Peppers and Onions

Directions

1. Heat oil in a large skillet over medium-high heat until shimmering.
2. Add onions and peppers and cook, stirring frequently, until softened and browned in spots, about 8 minutes. Add vinegar and sugar. Remove from heat and stir until sugar is dissolved. Season to taste with salt and pepper.
3. Light one chimney full of charcoal. When all the charcoal is lit and covered with gray ash, pour out and arrange the coals on one side of the charcoal grate. Set cooking grate in place, cover grill and allow to preheat for 5 minutes. Alternatively, set half the burners on a gas grill to the highest heat setting, cover, and preheat for 10 minutes. Clean and oil the grilling grate.
4. Transfer pepper mixture to a 10-inch square disposable aluminum pan. Alternatively, construct a tray out of a double layer of heavy duty aluminum foil, 10 inches square, with sides about 2 inches high. Nestle sausages into pepper mixture.
5. Place tray on hot side of grill and cook until simmering, about 4 minutes. Slide to cooler side of grill. Cover grill with vents over the sausages. Cook with all vents open until sausages register 140° to 145°F on an instant read thermometer, about 20 minutes, turning once in the middle.
6. Remove lid. Using tongs, remove sausages from peppers and place directly on cooking grates over hot side of grill. Cook, turning occasionally, until well browned and crisp, about 3 minutes total. Return to peppers.
7. Toast buns over hot side of grill if desired. Serve sausages with buns and sweet and sour peppers.