After making a fantastic tuna sandwich, we made a few variations of tuna appetizers the next day. This is one of them, and it’s great. When working with tuna, be very careful not to overpower the subtle taste. We added a very mild Saint Faron cheese as a spread almost, and topped it with a small amount of balsamic vinegar reduction. Notice how the vinegar brings out the texture of the tuna in the pictures. This is a bite of food heaven.