Mix 4 tablespoons melted butter, 1/4 cup light brown sugar, 1/4 teaspoon each curry powder, cinnamon and vanilla extract, a pinch of salt and a splash of dark rum in a bowl. Slice a pineapple in half lengthwise (keeping the top attached), then cut each half into 3 long wedges; cut out the core. Place 2 wedges on a sheet of foil; brush with the spiced butter and fold up. Repeat to make 2 more packets; grill over medium heat until the pineapple is soft and golden on the bottom, 15 to 20 minutes.
Photograph by Kang Kim