Grilled Peach–Infused Bourbon
Prepare grill for medium-high heat. Grill peaches until lightly charred, about 4 minutes per side. Combine peaches and bourbon in a 1-qt. jar. Cover and let sit at room temperature 3 days. Strain into a medium bowl (do not press on solids or syrup will be cloudy); discard peaches. Transfer syrup to a large jar, cover, and chill.
DO AHEAD: Grilled Peach–Bourbon can be made 1 month ahead. Keep chilled.