In a 12-inch iron skillet over medium-low heat, combine brown sugar and butter; cook until sugar is melted. Remove from heat. Arrange pineapple slices over the sugar mixture; place a cherry in the center of each slice.
In a mixing bowl, beat egg yolks until thick and lemon colored. Add sugar pineapple juice, and vanilla; continue beating for 1 to 2 minutes. Sift dry ingredients together and stir into batter. Fold in stiffly beaten egg whites. Pour batter over pineapple in skillet. Bake in a preheated 350 degree oven for about 25 to 30 minutes. Invert onto a large plate and serve warm with whipped cream or topping.