Ingredients

• 2 lbs beef sirloin or rump roast
• 3 oz bacon
• 1.5 tbsp oil or lard
• 4 medium carrots
• parsley roots or parsnips
• 0.5 small celery root
• 2 medium onions
• 1 small apple
• bay leaves
• black peppercorns
• allspice berries
• 2 sprigs fresh thyme
• lemon
• 3 tbsp sugar
• 2 tbsp white vinegar
• 1 tbsp yellow mustard
• 3 tbsp butter
• 3 tbsp all-purpose flour
• 1.5 cups heavy cream
• 2 tsp salt
• 0.5 tsp black pepper