This recipe makes two tuna melt sandwiches. Lay down your slices of sourdough bread and place 1 tablespoon of grated mozzarella cheese and 1 tablespoon grated cheddar cheese in-between the slices for both sandwiches.
Place a frying pan or skillet on medium heat and add in a drizzle of vegetable oil and a spoonful of butter. Once melted, add in the cheese sandwiches and fry for 4 minutes on each side (make sure to check the bread doesn't burn - reduce the heat if it's catching).
Meanwhile, in a bowl, combine the drained canned tuna, finely chopped red onion, finely chopped pickled gherkins, finely chopped pickled jalapeños, chopped capers, mayonnaise, yogurt, paprika, black pepper, and honey. Stir to combine and then taste. Adjust and season based on your preferences.
Once your grilled cheese sandwiches are golden brown on both sides, remove from the pan and pull apart the two pieces of bread - the cheese pull should be amazing! Divide the tuna mixture between both sandwiches, on one side of the bread add the tuna, then place the other piece of grilled cheese on top of the tuna mixture (see images further up the blog for references). Press to combine and seal, then slice in half and enjoy!