How to Make It
Cut tofu in half horizontally; place halves on a paper towel-lined plate. Top with more paper towels and a plate; let stand 15 minutes. Cut tofu into 3/4-inch cubes.
Combine chili sauce, vinegar, soy sauce, ginger, and garlic in a bowl.
Fill a large Dutch oven with water to a depth of 3 inches; bring to a boil. Place a steamer basket in pan. Add bok choy and broccoli to basket; cover and steam 5 to 7 minutes or until crisp-tender. Drain.
Combine flour and cornstarch in a bowl. Dredge tofu in flour mixture, shaking off excess. Heat a large nonstick skillet over medium-high heat. Add 1 tablespoon oil to pan; swirl. Add half of tofu to pan; cook 5 minutes or until browned on all sides. Remove cooked tofu from pan. Repeat procedure with remaining tofu and 1 tablespoon oil. Add remaining 1 1/2 teaspoons oil and onion to pan; cook 4 minutes. Return tofu to pan; cook 1 minute.
Divide broccoli mixture and tofu among 4 plates. Top evenly with chili sauce mixture, peanuts, cilantro, and sesame seeds.