Here is a detailed slow cooker recipe for silverside beef: Ingredients:

• 1.3 to 2 kg silverside of beef
• 1 medium onion
• 2 celery sticks
• 2 medium carrots
• 3 medium potatoes
• 240 ml frozen instant pot veggie stock or beef stock
• 2 tsp extra virgin olive oil
• 1 tbsp Worcestershire sauce
• 1 tbsp tomato puree paste
• 1 tbsp garlic puree
• 1 tbsp bouquet garni (herb mix)
• Salt and pepper to taste

Instructions:

1. Clean and dice the celery. Peel and dice the onion, carrots, and potatoes.
2. Heat olive oil in the slow cooker on a hob or pan, then brown the silverside on both sides briefly.
3. Remove the silverside and add the vegetables and frozen stock to the slow cooker.
4. Score the silverside and season with salt, pepper, tomato puree, garlic puree, Worcestershire sauce, and bouquet garni.
5. Place the silverside on top of the vegetables.
6. Cook on high for 4 hours or low for 7 hours (or until meat is tender).
7. When done, remove the silverside and blend the cooking liquid and vegetables to make a sauce.
8. Slice the silverside and serve with the sauce and your preferred side dishes.

Additional tips:

• Browning the meat before slow cooking seals in juices and adds flavor.
• Rest the meat 20-30 minutes after cooking for better slicing.
• The sauce can be adjusted by adding cooking liquid gradually to the blended veggies.
• For larger silverside joints, cooking time may extend up to 8 hours on low.
• Variants include adding Worcestershire and tomato paste to stock for rich flavor.

This recipe provides a tender, flavorful silverside roast cooked slowly with vegetables and a rich sauce made from the cooking juices.