First, mix 2 tablespoons of brown rum with the same amount of honey. Add a few drops of lemon juice and mix everything to get a glaze. Cut the pineapple into four and brush with a third of the glaze. Then place the quarters on the grill. During cooking, occasionally sprinkle the pineapple with the remaining glaze. At 220°C, the pineapple becomes slightly dark after about 10-15 minutes and is served hot.