1-Step 1: Prepare the Homemade Sauce Start by making the sauce, which you can even do a day ahead to save time. In a medium bowl, whisk together the hoisin sauce, soy sauce, peanut butter, rice wine vinegar, sesame oil, sugar, grated fresh ginger, garlic powder, and crushed red pepper flakes. Whisk vigorously until the mixture becomes smooth and well combined. Set the sauce aside while you prepare the filling. The flavors will continue to meld together as it sits, creating an even more robust taste profile.

2-Step 2: Cook the Ground Chicken Mixture Heat a large skillet or wok over medium-high heat. Add the tablespoon of peanut oil and let it warm for about 30 seconds. You’ll know the oil is ready when it shimmers slightly. Add the ground chicken, finely diced onion, and minced garlic to the hot pan. Use a wooden spoon or spatula to break up the ground chicken into small crumbles as it cooks. This ensures even cooking and helps the meat absorb the onion and garlic flavors. Continue cooking for 5-10 minutes, stirring frequently, until the chicken is fully browned and cooked through and the onions have become translucent and fragrant. The internal temperature of the chicken should reach 165°F for food safety. You’ll notice the meat changes from pink to white throughout with no pink spots remaining.

3-Step 3: Add Vegetables and Water Chestnuts Once your chicken is properly browned, add the diced bell peppers and drained water chestnuts to the skillet. Stir everything together to combine the vegetables with the chicken mixture. Cook for approximately 5 minutes, stirring occasionally. The bell peppers should soften slightly but still maintain some of their crunch. The water chestnuts provide that signature crisp texture that makes lettuce wraps so satisfying, so be careful not to overcook them. You want them to retain their characteristic snap when you bite into them. During this step, the vegetables release some natural juices that help deglaze the pan, incorporating all those flavorful browned bits from the bottom of the skillet.

4-Step 4: Add Sauce and Simmer Pour the prepared sauce over the chicken and vegetable mixture in the skillet. Use a spatula to scrape every bit of sauce from your bowl. Stir thoroughly to ensure every piece of chicken and vegetable gets coated with the flavorful sauce. Reduce the heat to low and let the mixture simmer gently. The sauce will begin to thicken as it cooks, creating a glossy coating that clings to the filling. This typically takes 3-5 minutes. You can tell it’s ready when the sauce has reduced slightly and the mixture looks cohesive rather than soupy. Remove the skillet from heat once the filling reaches your desired consistency. The sauce will continue to thicken slightly as it cools.

5-Step 5: Serve Your Lettuce Wraps Transfer the hot filling to a serving bowl or platter. Arrange your prepared lettuce leaves on a separate plate. Set out bowls of crushed peanuts and chopped green onions for garnish so everyone can customize their own wraps. To assemble, simply spoon about ¼ to ⅓ cup of filling into the center of a lettuce leaf, top with crushed peanuts and green onions, fold the sides inward, and enjoy immediately while still warm.