Peach chutney

Ingredients

• 1 tablespoon olive oil
• 1/2 medium onion, chopped
• 1 garlic clove, minced
• 1 tablespoon fresh grated ginger
• 5 x 410g tins of peach slices in juice, drained and chopped (or the equivalent weight in fresh peeled peaches)
• 1 cup packed brown sugar
• 1 cup cider vinegar
• 1 1/2 tablespoon yellow mustard seeds
• 1 whole dried chilli
• 1/2 cup dried cranberries
• 1 teaspoon salt (or more to taste)
• to serve, huntley & palmers cracked pepper and rock salt flatbreads