The Marks Family served up Swedish meatballs with cream sauce on The Big Family Cooking Showdown.

The ingredients for the meatballs: 200g Maris Piper potatoes, peeled and cut into chunks
1 free-range egg, beaten, 2 tbsp butter, 1 small red onion, finely chopped, 250g beef mince, 250g pork mince, ½ tsp ground allspice, small bunch flatleaf parsley, finely chopped, 2 tbsp single cream and salt and freshly ground black pepper.