In this tutorial, we learn how to make pineapple upside down cake. First, take a 9x13 pan and add in 1 stick of butter and 1.5 c packed brown sugar. Heat this up in a 350 degree oven while you prepare the batter. Add in 2/3 c butter, then add in 1/3 c sugar and cream together until fluffy. After this, add in 4 eggs, then add in 3 1/3 c flour and 3 tsp baking powder to the batter. After this, take the pan with the brown sugar and butter, and mix together until it's spread out on the bottom of the pan Now, place pineapple onto this, then pour on the cake batter over it. Bake in the oven until it's golden brown, then allow to cool. After it's finished cooling, turn the pan upside down and you will have a delicious cake ready to eat!