Ingredients

• 3 lbs beef stewing meat
• 2 tbsp butter or oil
• 3 large onions
• 2 cloves garlic
• 2 cups Belgian dark beer
• 1.5 cups beef stock
• 2 tbsp tomato paste
• 2 tbsp brown sugar
• 1 tbsp red wine vinegar
• 2 tbsp flour
• bay leaves
• 2 sprigs fresh thyme
• 1 tbsp mustard
• 1 tsp salt
• 0.5 tsp black pepper