For the dough knead flour, 150 g sugar, butter, 1 egg and salt to a smooth dough. Wrap in foil and chill for about 1 hour
Chop the nuts for the filling. Caramelise 450 g sugar. Add the nuts and stir in. Add cream, bring to the boil and dissolve the caramel while stirring. Remove from the heat and let it cool down a little
Roll out 3/4 of the dough into a circle (approx. 31 cm Ø) on a floured work surface. Put it into a greased springform pan (26 cm Ø) sprinkled with flour. Press the rim evenly. Pour nut caramel into the mould. Roll out the remaining dough on a floured work surface. Cut into small rectangles (approx. 2 x 4 cm). Press them together slightly at the ends and place them on the nut caramel as a garland of leaves. Form the remaining dough into a cord and place it at the end of the garland of leaves
Whisk 1 egg, brush the wreath with it. Bake the tart in a preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: see manufacturer) for approx. 30 minutes. Turn down the oven temperature (electric oven: 150 °C/ convection oven: 125 °C/ gas: see manufacturer) and continue baking for approx. 15 minutes. Remove the cake from the oven and put it in the tin, preferably overnight. Remove the cake from the tin and cut it into pieces. Dust the edge with icing sugar. Whipped cream tastes good with it
waiting time approx. 13 hours