Grilled Chicken Caesar Sandwich with Anchovy Butter

If you’re at all a foodie, we have two words that are about to blow your mind. Anchovy butter. It’s the trick we unlocked to make this the best sandwich we’ve ever tasted. The marinated chicken, the Caesar-dressed romaine, the shredded Parmesan; they are all doing their jobs. The anchovy butter is what takes the whole thing to the next level. Don’t say we didn’t warn you.

A hand holds a grilled chicken caesar sandwich sliced down the middle to show the filling, garnished with a pickle, on a wooden board with spices and a lemon slice nearby.

The anchovy butter is what makes this taste like Caesar instead of just a garlic bread chicken sandwich. It goes on the ciabatta before the grill, and when it toasts, it carries garlic, lemon, and just enough umami to make every bite taste amazing.

A flat lay of raw chicken breasts on a plate surrounded by romaine lettuce, bread, Parmesan cheese, garlic, lemon, butter, olive oil, mustard, black pepper, salt, mayonnaise, and anchovy paste.

🔪 Ingredients for Grilled Chicken Caesar Sandwich

For the Chicken Marinade:

Chicken cutlets: thin-sliced boneless breast. Look for cutlets that are close in size so they finish cooking at the same rate and sit flat in the sandwich.
Olive oil
Lemon: fresh squeezed only
Dijon mustard: the sharp, tangy kind. Honey Dijon reads sweet against the anchovy butter and throws the balance off.
Garlic cloves: smashed for the marinade, not minced. Smashed cloves infuse flavor without little bits sticking to the surface of the chicken during grilling.
Kosher salt & Black pepper

For the Anchovy Garlic Butter Bread:

Ciabatta loaf or small French loaf: ciabatta gives you a chewier, sturdier platform that holds up to dressed romaine and a hot cutlet longer before softening. French bread gives a lighter, crispier bite.
Butter: must be fully softened to room temperature. Cold butter tears the bread and does not blend smoothly with the anchovy paste.
Anchovy paste: this is the ingredient that makes the bread taste like Caesar instead of just garlic toast. Do not skip it.
Garlic: minced fine for the butter
Lemon

For the Sandwiches:

Romaine: heart of romaine, dried completely before dressing. Wet lettuce thins the Caesar dressing and speeds up soggy bread.
Caesar dressing: a bold, lemony one. A mild or sweet Caesar dressing gets lost here because the anchovy butter is already carrying the savory load.
Parmesan: shredded, not the pre-grated powder. The texture difference on the finished sandwich is real.

Equipment

A grill or grill pan is the only specialized tool you need. This works on charcoal, gas, or a cast iron grill pan. On charcoal, the smoke adds a layer that plays well against the anchovy butter. An instant-read thermometer matters here because thin cutlets can go from done to dry in under a minute. Pull at 160°F and let carryover finish the work.

📝 How to Make Grilled Chicken Caesar Sandwich

Marinate the chicken. Whisk the olive oil, lemon juice, Dijon, smashed garlic cloves, salt, and pepper together in a medium bowl. Add the cutlets and turn to coat completely. Cover and refrigerate for 30 minutes. Do not push beyond that or the lemon starts breaking down the texture of the meat.
Grill the cutlets. Preheat your grill or grill pan to medium-high heat, around 400-450°F. Remove the cutlets from the marinade and grill 3-4 minutes per side until the internal temp reads 165°F. Transfer to a plate and rest for 2 minutes before assembling.
Make the anchovy butter. Mash the softened butter, anchovy paste, minced garlic, and lemon juice together in a small bowl until smooth and evenly combined. If the mixture looks lumpy, the butter was too cold. Let it warm up for another few minutes and try again.
Prep and toast the bread. Cut the loaf in half crosswise, then split each piece open. Spread the anchovy-garlic butter evenly and thickly across the cut sides. Set them cut-side down on the grill for 1-2 minutes, until golden, crisp at the edges, and fragrant. Watch them closely. Butter and garlic toast faster than plain bread.
Dress the romaine. Toss the chopped romaine with most of the Caesar dressing and about half the shredded Parmesan until well coated.
Assemble. Spread the remaining Caesar dressing over the toasted bread. Layer a rested chicken cutlet onto each bottom half, top with the dressed romaine, and finish with the remaining Parmesan. Close the sandwiches and serve immediately.

A grilled chicken caesar sandwich is cut in half on a plate, served with potato chips and a lemon wedge.

🔄 Substitutions

Chicken thighs for cutlets: Use boneless, skinless only. They take 4-5 minutes per side instead of 3-4 for cutlets, and the sandwich gets harder to eat cleanly because thigh meat does not lay as flat. The flavor is richer, but the structure suffers.
French bread for ciabatta: The bite gets lighter and crispier overall. Ciabatta holds the weight of the chicken and dressed romaine longer before softening; French bread is fine, but you will want to eat it faster.
Whole anchovy fillets for anchovy paste: Chop 4-5 fillets very fine and mash them into the softened butter. The flavor is essentially the same; once mashed into warm butter, the texture difference disappears entirely.
Homemade Caesar for store-bought: Scratch dressing made with raw egg yolk and anchovy has more complexity, but store-bought works well here because the anchovy butter is already doing the heavy Caesar work. Pick a bold, lemony variety.

💡 Meat Nerd Tips

Thin cutlets develop grill marks before they are cooked through. Grill marks are not a sign of doneness. Pull the thermometer out every time. The target is 165°F internal temp, not color.
Bring the butter to full room temperature before mixing the anchovy butter. Cold butter will not blend smoothly with the anchovy paste, and you will end up with uneven streaks instead of a cohesive spread that toasts evenly.
Dry the romaine before dressing it. Water on the lettuce thins the Caesar dressing and gives you soggy bread. A salad spinner gets it done in 30 seconds.
On charcoal, the bread can go from golden to burnt quickly once the butter drips through the grates. Check at 60 seconds. This is not a set-it-and-walk-away step.

A plate with a grilled chicken caesar sandwich, a lemon wedge, potato chips, and pickles, with additional sandwich pieces, pepper, and condiments nearby on a dark surface.

🍽️ What to Serve with Grilled Chicken Caesar Sandwich

Grilled corn on the cob: The sweetness cuts through the salt of the anchovy butter in a way that makes every other bite of the sandwich taste even richer. It earns its place on that plate.
Kettle chips: The crunch matters here. A soft side next to this sandwich makes the whole meal feel monotone.
Hot Honey Salmon Caesar Salad: If you are going full Caesar at the table, our Hot Honey Salmon Caesar Salad runs a surprising parallel. Two Caesar-forward dishes at one meal sounds redundant until you try it.
A simple grilled side: Pull anything off the grill while the chicken rests. This sandwich is already doing the heavy lifting on flavor, so sides can be low-effort. See our full collection of grilling recipes if you want to go all out.

🧊 Leftovers and Storage

Store the grilled chicken, dressed romaine, anchovy butter, and bread separately. Once assembled, the sandwich softens within minutes and does not hold.
Grilled chicken: airtight container, refrigerated for up to 3 days. Reheat in a skillet over medium heat for 2-3 minutes per side.
Anchovy garlic butter: airtight container in the refrigerator for up to 3 days. Let it soften to room temperature before spreading. Make a double batch, cuz you’re going to use it more than you realize (particularly when you melt it over a steak as it’s resting)
Do not freeze assembled sandwiches.

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Two ciabatta rolls filled with grilled chicken caesar sit on a wooden board, surrounded by lemon wedges, pickles, potato chips, spices, and kitchen utensils.

Quick Summary

A grilled chicken Caesar sandwich built on anchovy butter toast that makes the whole thing taste like the crouton you cannot stop eating. Marinate the cutlets, grill them to 165°F, toast the anchovy-buttered bread on the same grill, dress the romaine, and stack. The anchovy butter is the one thing that separates this from every other grilled chicken sandwich in your rotation, and it takes about two minutes to make. If you love the Caesar format, our Chopped Chicken Caesar Wrap runs a similar flavor profile in wrap form.

❓ FAQs

Can I make this grilled chicken Caesar sandwich ahead of time?

Partially. Grill the chicken and make the anchovy butter up to 3 days in advance, and keep them refrigerated separately. Toast the bread fresh when you are ready to assemble. Once the sandwich is built, it does not hold; the romaine wilts and the bread softens fast.

My cutlets are very thin. Do they still take 3-4 minutes per side?

Not necessarily. Very thin cutlets can be done in 2 minutes per side. Start checking internal temp at the 2-minute mark. If they are small as well as thin, two cutlets per sandwich is a good fix for both coverage and portion.

Will the anchovy butter make this sandwich taste fishy?

No. Anchovy rounds out when it hits heat and butter, reading as salty and savory rather than fishy. The flavor that registers is Caesar, not anchovy. This is the same reason anchovy is in almost every Caesar dressing, and you would never know it was there.

What grill temperature works best for the chicken cutlets?

Medium-high, around 400-450°F. Too hot and thin cutlets char on the outside before the center is done. Too low and they dry out before they develop any meaningful color. Medium-high gives you the grill marks and the 165°F internal temp at the same time.