1-Creating this Haliimaile Pineapple Upside Down Cake: starts with simple steps that lead to a delicious result. Begin by blending the milk, egg yolks, and vanilla extract until smooth to form the base of your batter. This method keeps everything mixed evenly for a light, airy cake.

2-Next, in a separate bowl, combine the sifted cake flour, sugar, baking powder, and salt to build the dry foundation. Add the soft butter along with half of the milk and egg mixture, blending until a thick paste develops. Then, incorporate the remaining milk mixture and blend again until smooth and free of lumps; set the batter aside for now.

3-Prepare the caramel sauce in a skillet by melting the butter, then stirring in the brown sugar until it is smooth; let it simmer for 10-15 minutes. In a large baking pan, arrange the pineapple slices so they touch each other for even caramelization. Spoon the caramel sauce evenly over the slices and pour the cake batter on top to cover everything.

4-Bake at 325°F (163°C) for 30 minutes, then turn the pan and bake for an additional 15 minutes until done. Let the cake cool completely before flipping it onto a large platter and cutting it into eight even pieces. Serve warm, perhaps with whipped cream or vanilla ice cream, for the best experience, as the total preparation time is about 1 hour and 15 minutes.