01 -
Preheat the oven to 175°C. Generously spray a 12-cup jumbo muffin pan with non-stick cooking spray; set aside.
02 -
In a large bowl, whisk the eggs until smooth. Add granulated sugar, 55 g brown sugar, and 10 ml rum or vanilla extract, then beat until combined. Stir in pineapple juice and set aside.
03 -
In a separate bowl, sift together the all-purpose flour, baking powder, cinnamon, 1.5 g salt, and cornstarch.
04 -
Gradually add the dry mixture to the wet ingredients, whisking gently until just combined. Avoid overmixing to preserve a light texture. Set aside while preparing the topping.
05 -
In a small saucepan, melt unsalted butter with 270 g brown sugar, 15 ml rum or vanilla extract, and 1.5 g salt over medium heat until bubbling and caramelized. Remove from heat.
06 -
Spoon a tablespoon of caramelized topping into each muffin cup. Arrange one pineapple ring and a maraschino cherry inside each cup atop the caramel.
07 -
Divide batter evenly among muffin cups, filling about three-quarters full. Bake for 25 minutes or until a toothpick inserted in the center comes out clean.
08 -
Allow the cakes to cool in the pan for 10 minutes, then invert onto a wire rack or serving plate to reveal the pineapple topping. Serve warm or at room temperature.