To prepare the
roll with choux pastry, first, prepare all the ingredients for the filling. Start with making
liver pate. In a pan with vegetable oil, sauté coarsely chopped onions and carrots (2 min). Add the liver, salt, pepper, paprika, and simmer until cooked (15-20 min). Blend the cooked liver with vegetables and eggs in a blender or meat grinder, add butter, and mix well.