For the nougat rings, knead together the powdered sugar, flour, speculaas spice, butter and egg yolks with a mixer and refrigerate for half an hour.
Roll out the dough to a thickness of 3 mm. First cut out circles of 5 cm diameter, then a hole of 2 cm diameter in the middle of each. Place the rings on a baking tray covered with baking paper. Bake in a preheated oven at 160 to 180 °C for 10 to 12 minutes.
Then allow to cool.
Melt the nougat in a hot water bath and allow to cool slightly. Fill a piping bag with a No. 4 nozzle and pipe a nougat ring onto each cookie. Refrigerate for one night.
Chop the cooking chocolate and melt in a water bath. Dip the surface of the nougat rings in the cooking chocolate and let dry.
Melt the hazelnut glaze according to instructions and decorate the nougat rings with it.