Grown-up tuna sandwich

I'm not sure where I found this recipe, but it is a delicious, sophisticated version of a tuna sandwich.

Grown-up tuna sandwich

1 can tuna, drained

1 tablespoon salt-packed capers, rinsed and drained, finely chopped

1 1/2 teaspoons finely chopped red onion,

1 1/2 teaspoons finely chopped fresh basil, plus additional 2 leaves for garnish

1 1/2 teaspoons fresh lemon juice

1/2 teaspoon lemon zest

Mix all ingredients in bowl (except for 2 basil leaves), season with pepper, spoon onto crusty bread and top with basil leaves. (serves 2)