Preheat and clean the grill: Heat to medium-high. Scrape the grates clean and oil them lightly to prevent sticking.
Prep the peaches: In a bowl, toss peach wedges with oil, 2 tablespoons brown sugar, a pinch of salt, and cinnamon if using.
The sugar helps with caramelization.
Make the glaze: In a small bowl, combine melted butter, remaining brown sugar, honey, and vanilla. Stir until smooth. This will brush onto the pound cake.
Grill the peaches: Place peaches cut side down.
Cook 2–3 minutes per side until grill marks appear and the fruit softens. Move to indirect heat if they char too fast.
Brush and grill the cake: Lightly brush both sides of each pound cake slice with the butter-sugar glaze. Grill 45–60 seconds per side until golden with crisp edges.
Don’t walk away—this goes fast.
Assemble: Place a warm slice of grilled pound cake on each plate. Top with a few peach wedges, a scoop of vanilla ice cream, and a drizzle of any leftover glaze. Add mint if you like.
Serve immediately: This dessert shines when the cake is warm and the ice cream is just starting to melt.