Pat your chicken breast dry with paper towels — this makes it cook faster and brown better. Dice it into small, bite-sized pieces (about ½-inch cubes). You'll want pieces small enough to fit nicely in the lettuce leaves without making a mess when you eat them. This prep takes about 5 minutes but makes everything better.
Heat 1 tablespoon olive oil in a large skillet over medium-high heat until it's shimmering but not smoking. Add the diced chicken and let it sit undisturbed for 2 minutes — this creates that golden crust everyone loves. Stir and cook for another 5-7 minutes until the chicken's cooked through and no pink remains inside.
Push the cooked chicken to the side of the skillet. Add minced garlic and ginger to the empty space, stirring constantly for about 30 seconds until it smells absolutely amazing. Don't panic if the garlic sticks a little — that's actually flavor developing. Stir everything together so the garlic coats all the chicken pieces.
Pour in soy sauce, honey, sesame oil, and rice vinegar. Give everything a good stir so the sauce coats the chicken evenly. Let it simmer for 1-2 minutes until the sauce thickens slightly and gets glossy — you'll see it coat the chicken beautifully.
Remove the skillet from heat and let it cool for 2 minutes. Taste the chicken filling and adjust seasonings if needed — maybe more soy sauce if you want it saltier, or a drizzle of honey if you prefer sweeter. I always taste at this point because it's your chance to make it exactly how you like it.
While the chicken cools, prepare your lettuce leaves by gently separating them and patting them dry. Arrange them on a serving platter so they're ready for assembly. Some people blanch lettuce briefly in hot water, but I skip that step because the crunch is seriously the best part.
To assemble, spoon a small amount of the warm chicken mixture into each lettuce leaf. Top with julienned carrots, cucumber, roasted peanuts, and sesame seeds. Serve immediately while the chicken is still warm — the contrast between the hot filling and cool crispy lettuce is chef's kiss honestly.