01 - Whisk together soy sauce, rice vinegar, and sesame oil in a medium bowl. Add tempeh cubes and toss to coat thoroughly. Allow to marinate for 10 minutes, turning occasionally.
02 - Combine cornstarch, salt, and pepper in a shallow bowl, mixing well to distribute evenly.
03 - Remove tempeh from marinade, allowing excess to drip off. Dredge cubes in cornstarch mixture, pressing gently to adhere coating on all sides.
04 - Heat 2 tablespoons vegetable oil in a large nonstick skillet over medium-high heat. Fry tempeh in batches without crowding, turning occasionally, until golden and crispy on all sides, approximately 8-10 minutes. Transfer to paper towel-lined plate.
05 - Wipe skillet clean and add remaining 2 tablespoons vegetable oil over medium heat. Sauté garlic and red chilies until fragrant, about 1 minute.
06 - Add soy sauce, maple syrup, rice vinegar, chili flakes, and sesame oil to the skillet. Stir well to combine and bring to a gentle simmer.
07 - Return crispy tempeh to the skillet. Toss gently but thoroughly to coat evenly in sauce. Cook for 1-2 minutes until sauce thickens and glazes the tempeh.
08 - Transfer glazed tempeh to serving platter. Sprinkle evenly with roasted peanuts, fried shallots, and fresh cilantro.
09 - Serve immediately while hot and crispy. Accompany with steamed jasmine rice or rice noodles and fresh lime wedges if desired.