Pressed Tuna Travel Sandwich (Pan Bagnat)
A sandwich from the city of Nice on France's Mediterranean coast, whose name means "the soaked bread" because the bread absorbs the olive oil and the juices of the vegetables until it turns soft.
It was the food of fishermen and workers, who would make it in the morning and press it to eat at midday once its flavors had melded, and that is what makes it ideal for travel and picnics to this day. We present it in a lighter version, tuna in water and rinsed olives.
Boil the egg for ten minutes, then cool it in cold water, peel it, and cut it into slices. Slice the tomato, pepper, and onion thinly. Rinse the black olives under running water to reduce their saltiness, since canned olives are salty and we want to control the sandwich's sodium.
Split the loaf horizontally into two halves and pull out a little of the inner crumb from each half to make room for the filling. Rub the inner surface with the cut garlic clove; this is the first step of the Niçoise method, giving the bread a light garlic flavor.
Whisk the olive oil with the red wine vinegar and black pepper, and brush it over both inner faces of the bread completely. Do not add salt, as the tuna and olives are enough to season the sandwich; this is a deliberate sodium adjustment. The dish's name, pan bagnat, means soaked bread, and this moistening with oil and vinegar is the soul of the recipe, which the bread absorbs to turn soft and rich rather than dry.
Spread the drained tuna over the bottom half, then arrange the tomato, pepper, onion, and olive slices over it along with the egg slices and the arugula leaves. Layer them evenly so every bite gets a bit of each ingredient, and cover with the top half of the bread.
Wrap the sandwich tightly in plastic wrap, place a weight on top of it (a plate with a can on it), and leave it in the refrigerator for at least an hour. Pressing merges the flavors and lets the bread absorb the juices of the vegetables and the dressing, and this step is what sets pan bagnat apart from any ordinary tuna sandwich.
Cut the pressed sandwich in half; it is eaten at room temperature, where it is at its best. For travel, keep it wrapped and carry it in a cool bag with an ice pack, and eat it within two hours of taking it out of the cold to keep it safe.
The glycemic index (GI) measures how quickly a food raises blood sugar, while the glycemic load (GL) measures how much a full serving raises it. Together they give the complete picture.
A low value (≤55) means a gradual rise in blood sugar — the most suitable range for diabetes and insulin resistance.
Glycemic load reflects the impact of the full serving. To lower it: take half a serving, or pair the recipe with a source of protein and fiber.
* Percent Daily Values are based on a 2,000-calorie diet per FDA food-label reference values — your daily needs may be higher or lower. Values are derived from the recipe's ingredients via the USDA database.
The most common problems when preparing Pressed Tuna Travel Sandwich (Pan Bagnat), and how to fix them:
Too little dressing, or it wasn't pressed. Brush both faces of the bread fully with the oil and vinegar and press it for at least an hour, for pressing and moistening are what soften the bread.
Bread that was too soft was used, or too much liquid was added. Choose a firm country loaf that is slightly stale, as it absorbs the flavor without falling apart.
The olives or the tuna are salty. Rinse the olives well, choose low-salt tuna in water, and add no salt at all, as what's in the ingredients is enough.
The slices are thick or not packed. Cut the vegetables thin, pack them tightly, and press well so the layers hold together.
Kept tightly wrapped in the refrigerator for up to one day; in fact its taste improves a few hours after pressing and melding.
Carried wrapped in an insulated bag with an ice pack, and eaten within two hours of taking it out of the cold per the two-hour rule.
Not suitable, as the tomato, the fresh vegetables, and the egg change texture after thawing.
| Original Ingredient | Tested Substitute | Ratio | Flavor Difference |
|---|---|---|---|
| Tuna in water | Grilled chicken breast, sliced | Same weight | An option for those who don't like fish, while keeping the protein high; season it with a little vinegar as well. |
| Country bread | Firm whole wheat bread | Same weight | Adds more fiber; choose it firm and slightly stale so it withstands pressing without getting soggy. |
| Black olives | Roasted pepper cubes | Same weight | For those who find olives salty; it lowers the sodium and keeps a Mediterranean flavor. |
| Arugula | Lettuce or basil leaves | Same weight | Arugula is sharper and lettuce is milder; both add freshness. |
| Ingredient | 1 serving | 2 servings (base) | 4 servings |
|---|---|---|---|
| Country bread | 90 g | 180 g | 360 g |
| Drained tuna in water | 60 g | 120 g | 240 g |
| Boiled egg | 1/2 egg | 1 egg | 2 eggs |
| Extra virgin olive oil | 10 ml | 20 ml | 40 ml |
The secret of pan bagnat is that it improves with waiting rather than spoiling, for pressing and time let the bread absorb the flavors. But because it contains tuna and egg, be sure during travel to keep it cold in an insulated bag with an ice pack, and eat it within two hours of taking it out of the cold per the two-hour rule for perishable foods (source: USDA FSIS).
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