Best Ever Grilled Chicken Sandwich

Say goodbye to boring chicken sandwiches and hello to the most insanely delicious grilled chicken sandwich ever! Picture this bite: toasty bun, tender Grilled Chicken Breast with caramelized edges, crisp lettuce, juicy tomato, and a luscious layer of sauce made from creamy mayo, tangy dill relish, chopped sweet onion, lemon juice and fresh parsley.

While the sauce is my favorite part of this recipe, we can’t forget about the chicken itself. My trick for grilling chicken breast using balsamic vinegar makes for the most juicy chicken with a flavorful, crispy, charred exterior! Just wait until you sink your teeth into one (or two or three) of these sammies!

Why This Grilled Chicken Sandwich Is the Best

• This recipe is easy to make and prepare ahead of time.
• Double or triple the recipe to feed a crowd.
• The grilled chicken is extra juicy, caramelized, and flavorful.
• The homemade sauce is absolutely divine on these sandwiches, and to dip any side veggies or potatoes in!
• Customize by adding more toppings like cheese, bacon, or avocado.

Ingredients

• Chicken breasts – you’ll need medium chicken breasts to grill until they’re juicy and tender! Can’t grill? Bake Chicken Breast (At 425) for just as delicious results!
• Hamburger buns – I like brioche buns, but you can also use wheat or regular buns, or even get creative and use Drop Biscuits or croissants.
• Bibb lettuce – Bibb lettuce offers the best coverage but you can use romaine leaves or any other crunchy leaf lettuce instead.
• Tomato – for a touch of sweet acidity, use a ripe regular or heirloom tomato.
• Balsamic vinegar – balsamic vinegar is the trick for the most flavorful and tender chicken breast! Marinating chicken in balsamic adds flavor, tenderizes the meat, helps lock in moisture, and creates a delicious caramelized crust on the outside.

Sandwich Sauce

• Mayonnaise – the base of our creamy sandwich sauce is mayo. Use the real stuff.
• Dill relish, or sweet relish – dill relish can be found right in the grocery store, and adds tangy, pickled deliciousness. You can use the sweet stuff if preferred.
• Sweet onion – for a sweet crunch, use sweet onion!
• Italian parsley – parsley adds a pop of green freshness.
• Lemon juice – for more freshness and a little acidity to cut the mayo, add a splash of fresh lemon juice.
• Ground mustard – ground mustard adds just a touch of that distinctive kick, similar to horseradish.

How to Make a Grilled Chicken Sandwich

You can’t beat a delicious chicken sandwich, stacked high with juicy grilled chicken, veggies, and a drool-worthy homemade sauce. Full instructions in the recipe card!

1. Make the sandwich sauce: mix together mayo, relish, onion, parsley, lemon juice, ground mustard, and salt and pepper.
2. Grill chicken. Marinate chicken in balsamic vinegar for 5 minutes. Grill at 450℉ for 6-8 minutes per side.
3. Let chicken rest. Sprinkle with salt and pepper, and let rest for 5 minutes. Toast buns.
4. Slice chicken. Slice the chicken breasts against the grain into 1/2-inch thick slices. Hold your knife at a slight angle, about 45 degrees, for flatter slices.
5. Layer. Fill bottom buns with a layer of chicken.
6. Add toppings. Then add tomato slices, lettuce, and extra chopped onion.
7. Spread sauce. On the top bun, spread sauce to your liking.
8. Enjoy! Put your sandwiches together, and dig in.

Side Dish Ideas

• Mexican Street Corn
• Pea Salad
• Sautéed Broccoli
• Roasted Green Beans
• Sautéed Spinach
• Baked Beans
• Smashed Potatoes
• Dill Pickles

Toppings

On these grilled chicken sandwiches, I top them with lettuce, tomato, a little leftover onion, and a creamy, tangy sauce. It’s heavenly! If you’re looking for more topping ideas, here are some of my favorites:

• Cheese like cheddar, Swiss, provolone, or pepperjack
• Bacon
• Avocado
• Caramelized Onions
• Roasted Red Peppers
• Slaw, like Vinegar Slaw or Mexican Coleslaw
• A different sauce like mustard, BBQ sauce, pesto, or hot sauce

More Chicken Recipes You’ll Love

• Lemon Pepper Chicken
• Marry Me Chicken
• Buffalo Chicken Wraps
• Orange Chicken
• Grilled Chicken Thighs