Remove the skin from the pineapple and cut about a half of the fruit into seven rings. Cut the rest of the pineapple into small pieces.
Use an electric whisk to beat the eggs until they are frothy, and add the sugar while continuing to stir.
Now add the vanilla extract, pineapple juice, flour, and baking powder before mixing the ingredients into a batter. To finish, fold in the pineapple chunks.
Add the batter to a cake springform pan and place the pineapple rings on top. Bake the cake for 60 minutes at 320°F.