To make the chicken: stir 1/4 cup soy sauce, 1/4 cup honey, 2 tablespoons sriracha, and 2 tablespoons rice wine vinegar together in a large bowl. Add 2 pounds boneless, skinless chicken thighs and toss to coat. Allow to rest at room temperature for at least 15 minutes, or marinate for up to 24 hours.
To make the Sriracha Almond Butter Sauce: stir together the almond butter, soy sauce, rice wine vinegar, honey, and sriracha in a large bowl. Be sure to use a large bowl - you need to stir really hard to create a smooth sauce, trust me, it’ll be annoying if you try to do this in a small bowl! If the sauce is too thick, add a tiny splash of warm water.
Preheat grill to medium-high (450°F) and grease the grill grates by soaking a dish towel with a couple tablespoons of neutral oil (grapeseed, avocado, vegetable), grabbing it with tongs, and wiping the oil over the hot grill grates. Shake as much marinade off the chicken as possible, then grill for 6 minutes on the first side, flip and cook for an additional 5 minutes. Transfer to a serving platter.
Build a big platter with the cabbage or lettuce leaves, chicken, and your desired toppings. Serve with sriracha almond butter sauce. You can cut the chicken up before serving, or let everyone cut their own.