Tuna melt – Andy Cooks

Ingredients

• 8 slices of sourdough
• 500g (17.6 oz) can of tuna in spring water, drained
• 1 spring onion, finely sliced
• 1 large stalk of celery, diced
• 1/2 small jar capers
• salt and pepper to taste
• 120g (4.2 oz) mayonnaise
• 200g grated cheddar cheese
• 2 tbsp butter