Let the onion slices take some color in the clarified butter. Add the pear slices and sauté as well. Stir in the sour cream (sour cream) and thicken a little with the starch. Season to taste with marjoram and salt. Stir in the ground nuts. Cut the puff pastry into squares about six inches long. Fold the edges in a little. And put a tablespoon of the ragout on each square.
Bake in a preheated oven at 200 degrees (convection) for about 15 minutes. Also tastes good cold.