Nibblous | blackberry chutney

Ingredients

• 1 small red onion, chopped
• 1 cm /1/2 inch piece of fresh ginger, grated
• 1 garlic clove, crushed
• 1 tablespoon olive oil
• Pinch of red chilli flakes
• 225g/8 oz blackberries
• 3 tablespoons caster sugar
• 1 tablespoon balsamic vinegar
• ½ teaspoon salt