Pressure Cooker Beef and Silverbeet Soup

Ingredients

• 1 tablespoon olive oil
• 1 medium brown onion (150g), chopped finely
• 2 clove garlic, crushed
• 2 tablespoon tomato paste
• 1/4 cup (60ml) dry red wine
• 1 litre (4 cups) water
• 410 gram canned crushed tomatoes
• 500 gram piece beef skirt steak
• 2 dried bay leaves
• 3 medium silverbeet (swiss chard) leaves (240g), trimmed, shredded coarsely