Upside-down pineapple cake

Ingredients

• ½ Pineapple, peeled, quartered lengthwise and cored
• ¾ stick Unsalted butter
• ¾ cup Packed light brown sugar
• Maraschino cherries
• 1 ½ cups All-purpose flour
• 2 tsp Baking powder
• ¼ tsp Salt
• ½ stick Unsalted butter, softened
• 1 cup Granulated sugar
• 2 Large eggs, seperated
• 1 tsp Vanilla extract
• 1 tsp Allspice
• 1 tbsp Dark rum
• ½ cup Unsweetened pineapple juice