Knead 250 g flour, fat in pieces, 60 g diabetic sweetness, 1 egg and salt to a smooth dough. Cover and chill for about 1 hour. Roll out the dough on a lightly floured work surface to a thickness of approx. 3 mm. Cut out 40 large (approx. 5 x 5 cm) and 40 small hearts (approx. 4 x 4 cm). Place hearts on 2-3 baking trays lined with baking paper.
Whisk egg yolk and 1-2 tablespoons of water. Brush the small hearts with it. Bake all hearts in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 8-10 minutes. Let them cool down. Warm up the jam. Finely chop the nuts and stir into the jam. Place about 1/4 teaspoonfuls of each on the large hearts. Place small hearts on top. Let it cool down.
Warm up the jam. Finely chop the nuts and stir into the jam. Place about 1/4 teaspoonfuls of each on the large hearts. Place small hearts on top. Let it cool down. Dust with 3 g sweetness
Waiting time approx. 2 hours. / 1/2 BE