Dill Pickle Tuna Melt - Laura Loves to Cook

Ingredients

• 5 oz canned tuna in olive oil, drained
• 1/4 cup sour cream or greek yogurt
• 1 tsp mayonnaise
• 1 tsp grainy dijon mustard
• 1 tbsp gherkins, roughly chopped, plus a splash of the brine
• 1 tsp chopped fresh dill, plus more for garnish
• 4 slices of crusty bread
• 2/3 cup shredded cheddar cheese
• 1 tbsp olive oil