This tuna melt, which was adapted from Sam Yoo, the owner and chef of Golden Diner in New York, is almost more about the textures than the tuna: Two slices of rye bread, crisped in butter and adorned with melted American cheese, sandwich a hefty scoop of tuna salad and a fistful of salt-and-vinegar potato chips The sandwich will crunch, audibly, as you smash it together, and again between your teeth as you eat it But the tuna salad is equally memorable: Reminiscent of the flavors of a Big Mac, its tangy, mayo-based sauce gets a hefty dose of acidity from minced bread and butter pickles, mustard, vinegar and Tabasco