Add the sesame oil to a saucepan over medium-low heat. Add the garlic and simmer until fragrant, about 2 to 3 minutes.
Combine the remaining sauce ingredients in a bowl and stir until the cornstarch is dissolved. Pour and stir the sauce into the saucepan with the garlic. Stir frequently because the sauce will thicken quickly. Reduce heat to low and keep warm while you prepare the tofu.
For the Fried Tofu
Remove tofu from its package and press it to drain out extra moisture. Either use a tofu press or wrap in a kitchen towel and place something heavy like a can of beans over the top for 30 minutes or more. Once pressed, cut tofu into ½-inch cubes and pat dry with a paper towel.
Dredge tofu through the cornstarch, making sure each piece is coated.
Heat a skillet over medium heat. Add oil then the tofu pieces (use tongs to prevent oil from splattering). Cook the tofu until golden brown and then turn and cook on the other sides.
To Serve
To serve, arrange tofu on a platter and drizzle with sauce. Serve with rice, cauliflower rice, low carb noodles, steamed broccoli, and your favorite vegetables. Sprinkle with sesame seeds
Notes
To keep this recipe low carb, serve over cauliflower rice and/or low carb noodles (such as zucchini noodles or bean noodles).This recipe uses agar agar flakes to keep carbs low. If you are not worried about carbs, feel free to substitute agar agar flakes with 1 tablespoon cornstarch.