Prepare the marzipan paste with the finely chopped walnuts until smooth. Do not knead too long. Roll out the mixture to a thickness of one centimeter.
Melt 50 grams of the cooking chocolate and spread it on the marzipan with a brush. Dress.
Turn out the marzipan sheet and, using a long commercial kitchen knife, cut it first into strips, then into rombs.
Temper the remaining cooking chocolate. Using a praline fork, dip the chocolates briefly into the cooking chocolate and drain on a wire rack.
Before the cooking chocolate sets, place the walnut halves on top as a decoration.
Tip: Do you prefer milk chocolate or dark chocolate? Depending, use whichever you like better.