INGREDIENTS
PINEAPPLE LAYER
- ½ cup packed light brown sugar
- ¼ cup dark rum
- Pinch of kosher salt
- ½ stick unsalted butter
- 8 fresh cored and peeled pineapple rings, sliced ½-inch thick
CAKE
- 1½ sticks unsalted butter
- 1⅔ cups all-purpose flour (225g)
- 1¼ teaspoons baking powder
- 1¼ teaspoons Diamond Crystal kosher salt or ¾ teaspoons Morton kosher salt
- ¾ teaspoon ground cinnamon
- ½ teaspoon baking soda
- ¾ cup sour cream, at room temperature
- 3 tablespoons dark rum
- 2 teaspoons vanilla extract
- ¾ cup packed light brown sugar
- 2 large eggs, at room temperature