Heat honey, 100 g sugar and 2-3 tablespoons water while stirring until the sugar is dissolved. Beat egg and remaining sugar until frothy. Add honey-sugar syrup little by little in a thin stream.
Mix the flour, cocoa, gingerbread spices and ammonium bicarbonate, sieve it onto the honey-sugar mixture and work it into a smooth dough with the dough hooks of the hand mixer. Wrap in foil and let it rest for about 1 hour.
Roll out the dough on a floured work surface to a thickness of about 5 mm. Cut out 4 squares (approx. 8 x 8 cm) for the roof, 4 squares (approx. 5 x 5 cm) for the sides and 4 pieces for the front (total height approx. 10 cm, width approx. 8 cm, side height approx. 5 cm).
Heat the oil in a large frying pan. Fry the onion sausage in it until crumbly. Season with pepper, paprika and a little salt. Stir in tomato paste, sweat briefly and deglaze with 1⁄4 l water and cream. Stir in remaining frozen herbs, bring to the boil. Stir in chopped herbs and gnocchi, warm up briefly. Season to taste and serve.
Bake in the preheated oven (electric: 175 °C/ gas: level 2) for 15-20 minutes. Let cool on a cake rack. Beat the egg whites and icing sugar with the whisks of the hand mixer until foamy and fill approx. 2/3 of the mixture into a piping bag with a small star-shaped spout.
Spray the edges of the square gingerbread pieces with it and put a little house together on each gingerbread circle. Fill the rest of the icing into the freezer bag, cut off a small corner and paint doors, windows and icicles on the little houses.
Decorate houses with pastry decorations and hazelnuts. Leave to dry. Results in 2 cottages.