Mix flour, salt and sugar. Add 125 g butter in flakes. Grate everything between your hands until you get a sandy dough. Press a depression into the dough. Whisk the egg, add it and process quickly. Wrap in foil and chill for about 1 hour
Peel the pineapple, cut it in half lengthwise, remove the woody core and cut the pineapple into slices. Heat 50 g butter and cane sugar in a pan and fry the pineapple for about 10 minutes. Peel ginger, grate finely and add to the pineapple
Wrap a springform pan (20 cm Ø) possibly from the outside with aluminium foil. Fill in the ginger-pineapple. Roll out the dough between two layers of baking paper to a circle (approx. 22 cm Ø). Prick with a fork. Place the rolled out dough over the ginger-pineapple and put the edges of the dough into the tin
Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: see manufacturer) for approx. 30 minutes. After baking, let the tart cool down for about 5 minutes. Turn out onto a plate and sprinkle with grated coconut. Serve warm or lukewarm
Waiting time approx. 1 hour