How to Construct the Ultimate Italian Sub

An Italian sub isn’t the place for a bronzed, thick-crusted artisanal bread. The Italian-style loaf, with a tender crust and a lofty crumb, is the standard choice for a reason: Its plush interior softens after absorbing the dressing and the juices from the vegetables, making the whole stack more cohesive and easier to bite. 

While many supermarkets sell ready-made sub rolls, we preferred to buy long Italian loaves from the bakery section and cut them into 8-inch portions before assembling the sandwiches. The broader width allowed us to stuff the sandwich with more fillings. 

Umami-rich tomatoes, sharp onion, and refreshing iceberg all work to contrast the richness of the meats and cheese, but the key is how thin you cut them. Between the thin-sliced tomato and onion rounds and the mound of shredded iceberg are tiny spaces that make perfect collection points for dressing and juices. 

The Meats (and Cheese): Variety Is a Must

The mix of salumi is what distinguishes an Italian from other deli-meat-and-cheese subs, and it’s critical to incorporate a range of flavors and textures. We paired buttery, slightly piquant provolone cheese with these four meats, each of which brings unique qualities to the sandwich. Savory and creamy mortadella, peppery and assertive capicola, funky and spiced Genoa salami, and mild and porky ham.

In many subs, the bread is drizzled with olive oil and red wine vinegar and sprinkled with dried oregano. But these two components tend to sink in where they land rather than distributing evenly over the bread’s surface. Some bites end up dry, others are greasy, and still others are puckeringly sour and wet.

That’s why we make a dressing out of the components instead. Adding a small amount of mustard holds the oil and vinegar together in a light emulsion, as mustard seeds contain mucilage, an emulsifying polysaccharide, in their seed coats.

This also helps the dressing sit on the surface of the bread long enough for you to spread it with a spoon, ensuring an even amount in every bite.

Pickled peppers (“hots”) balance the rich cold cuts, but we found that sliced peppers tended to collect in large, overwhelming clumps. Hoagie spread, which is made of finely chopped pickled cherry peppers, is easier to disperse evenly (it’s also useful to have on hand for adding heat, salt, and acidity to dips, dressings, or glazes).

It was an Instagram reel from The New Yorker’s restaurant critic Helen Rosner that helped me put my finger on what separates a good sub from a great one. “Secretly, the single most important ingredient in 99 percent of sandwiches is air,” she declares after securing a sub from New York’s famed Parisi Bakery. In that moment, I realized that much of my recipe testing had focused on just that: creating tiny pockets of air within the sandwich. 

Take the meats, which I fold and crumple randomly as I arrange them on the bread. This technique, which I adapted after watching pros at the deli use the sub roll to haphazardly catch their cold cuts as they fell from the meat slicer, builds pockets of empty space into the layers of meat.

And those pockets—which are also present in the soft, airy bread; delicate shreds of lettuce; and thinly sliced onion and tomato—completely change the way the sandwich eats and tastes. With air built in, there’s a plush quality to the sub’s bite and chew, and there are plenty of crevices waiting to be flooded with the dressing and the vegetables’ juices.

When Rosner and I discussed subs over a recent call, she described the difference air makes by comparing the Italian to a panini. In the pressed sandwich, “the compression and the density give you more of a wall of flavors,” she said. Whereas in the Italian sub, “the flavors unfold in a much more multifaceted and crystalline way.”