Pour the cream into a mixing bowl and chill. Wash the cup and dry. For the crumbles, put the fat, 1 cup of flour, 1/2 cup of sugar, 1 cup of grated coconut and a pinch of salt in a bowl and knead until crumbly with your hands.
Cold. Drain the pineapple slices well in a sieve, collecting the juice. Add 1 cup of pineapple juice, 1 cup of sugar and 1 pinch of salt to the cream and beat with the whisk of the hand mixer for about 5 minutes.
Stir in the eggs bit by bit. Mix 3 cups of flour and baking powder, sieve onto the cream egg mixture and stir in. Pour the dough onto a well greased, flour-spread fat pan of the oven (32x38 cm) and smooth it down.
Spread pineapple slices evenly on top. Sprinkle with crumbles. Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for approx. 35 minutes. Remove from the oven, place on a rack and allow to cool.
Cut the cake into pieces. Arrange on a plate and decorate with mint.