Versatile recipe for meatballs & burger patty

Ingredients:
MEATBALLS
2-3 slices of bread chopped
1 big onion
1000g meat ( all pork or half pork and half beef)
2 eggs
34 tsp ground nutmeg
3/4 tsp all spice
3/4 tsp black pepper
1 tsp salt
GRAVY
90g butter
9 tbsp flour
3 cups beef brotb/stock /cube
1 cup ceeam or milk