Marinate the Chicken:

• In a bowl, whisk together olive oil, lemon juice, minced garlic, salt, and pepper.
• Add the chicken breasts, ensuring they’re well-coated. Cover and marinate in the refrigerator for at least 30 minutes (up to 2 hours).

Caramelize the Onions:

• Thinly slice one large onion.
• Heat 2 tablespoons of olive oil in a skillet over low heat.
• Add the onions and a pinch of sugar, stirring occasionally, for 15–20 minutes until golden and caramelized. Set aside.

Grill the Chicken:

• Preheat the grill to medium-high heat.
• Grill the marinated chicken for 6–8 minutes per side, or until the internal temperature reaches 165°F (75°C).
• Remove and let rest for 5 minutes.

Toast the Bread:

• Lightly brush the bread rolls with olive oil or butter.
• Place on the grill for 1–2 minutes, until lightly toasted.

Prepare the A1 Sauce Blend:

• In a small bowl, mix A1 sauce, honey, and cayenne pepper for an extra kick.

Assemble the Sandwich:

• Spread a generous layer of the A1 sauce blend on the bottom half of the bread.
• Add the grilled chicken breast, caramelized onions, lettuce, and tomato slices.
• Top with the other half of the bread.

Serve:

• Serve warm with your favorite side dish, like sweet potato fries or creamy coleslaw.