Make the peanut sauce: in a food processor, combine all the peanut sauce ingredients and blend until smooth. Transfer to a few small dishes for sipping and set aside.
Make the tofu: in a large nonstick skillet, heat the oil over medium-high heat. When it simmers, working in batches, add the tofu and sear for 2-3 minutes per side, until golden and crispy, using a spatula or tongs to rotate the tofu so that all sides are cooked. Add more oil as needed between batches.
Meanshile, whisk together the tamari, maple syrup, lime juice, turmeric, and sriracha in a small bowl. Add all the seared tofu to the pan if it's not there already, then add the tamari mixture, stir to coat, and cook for about 3 minutes more to warm through.
Turn off the heat and thread the tofu cubes onto skewers. Serve with the peanut sauce, lime wedges, and optional garnishes.