in Pressure Cooker Melt butter Then Add sugar. Stir.Add The pineapple, All The Juice From The pineapple Tidbits And TheRum. Close Pressure Cooker Lid, Bring to High Pressure Then Lower HeatOn Stove And Cook For 3 Minutes. Release Pressures (cold water OrAutomatic, According to Manufacturer's Directions), Open Lid And Stir.Excellent Served Over Pound Cake, Angel Food Cake, Ice cream or ByItself, Served With whipped cream.