Best Swedish Meatballs - Weighless Wonders

Ingredients

• 1 lb. (450g) 95% lean ground beef
• 4 tbsp. onion, finely chopped
• 4 tbsp. breadcrumbs
• 1 tsp. parsley, chopped
• ¼ tsp. ground allspice
• ¼ tsp. ground nutmeg
• ½ tsp. garlic powder
• ⅛ tsp. black pepper
• ½ tsp. salt
• 1 egg
• 1 tbsp. olive oil
• 4 tbsp. butter
• 3 tbsp. flour
• 1 pt. (480ml) beef stock
• 8 fl oz. (240ml) oat cream
• 1 tbsp. Worcestershire sauce
• 1 tsp. dijon mustard