Mike Tomkins’ Beef in Black Bean Sauce

Ingredients

• 300g Tri-tip (rump tail)
• 1 large white onion
• 2 red peppers
• 1 spring onion
• 3 garlic cloves
• 1 thumb-sized piece of ginger
• 2 tbsp Chinese black beans
• 1/2 tbsp sesame oil
• 2 tsp granulated sugar
• 1 pinch five spice
• 1 tbsp light soy sauce
• 2 tbsp Shaoxing wine
• 2 tsp cornflour
• 150ml chicken stock
• 2 tbsp vegetable oil