2 Tbsp butter
1 large yellow or white onion, peeled, grated (use the large holes of a box cheese grater)
2/3 cup milk
4-5 slices of bread, crusts removed, bread cut into pieces
2 eggs
1 pound ground pork
1 1/2 pounds ground beef
2 teaspoons kosher salt
1 teaspoon freshly ground nutmeg
1 teaspoon ground cardamom
2 teaspoons black pepper
6 Tbsp butter
1/3 cup flour
1 quart beef stock
1/2 to 3/4 cup sour cream
Salt
2 to 4 Tbsp of Lingonberry, red currant, raspberry or cranberry jelly, less or more to taste (optional)