Make crumbles from the crumble ingredients, chill.
Make a kneading dough from the dough ingredients and refrigerate for 1 hour.
Do not roll out the dough too thinly, cut out 8 cm diameter circles and place on a baking tray lined with baking paper. Cover the pieces of dough with 1/2 teaspoon Nutella and raspberry jam and sprinkle evenly with chocolate sprinkles.
I took Florentine rings and weighed out 25g of dough for one tart in order to get even pastries.
Florentine rings 8 cm in diameter, place on a baking tray lined with baking paper, line with dough, cover with 1/2 teaspoon Nutella and raspberry jam and sprinkle evenly with chocolate sprinkles.
Bake in the preheated oven at 175 ° C for about 15-20 minutes, leave to cool on wire rack and dust with powdered sugar.