First, you’ll want to preheat your oven (or air fryer) to 400°F. This is crucial for getting that crispy texture we're after. If you're using an air fryer, make sure it’s ready before you start prepping.
Next, drain the tofu. Press it gently with paper towels to remove any excess liquid, then cut it into bite-sized cubes. You want them to be uniform for even cooking.
In a large bowl, add the cubed tofu, soy sauce, and cornstarch. Carefully toss everything until the tofu is well-coated. The cornstarch is what will help achieve that beautiful crispiness!
Now, take a lined baking sheet and arrange the coated tofu in a single layer. It’s important that the pieces don’t touch, or they may stick together. Pop it into your preheated oven!
Set a timer for 20 to 30 minutes. Keep an eye on it, and when they turn golden brown and crispy, they’re ready to come out. If using an air fryer, it’ll take about 10 minutes at 400°F.
While the tofu is baking, let’s prepare the sauce. In a bowl, whisk together the gochujang, soy sauce, maple syrup, rice vinegar, butter, sesame oil, minced garlic, and ginger. This sauce is what makes this dish sing!
After the tofu is done baking, heat a skillet over medium heat. Carefully add the crispy tofu to the skillet and pour the sauce over it. Gently stir everything until the tofu is fully coated. This shouldn’t take more than about 5 minutes.
Make sure the sauce is sticky and clinging to the tofu. You’ll know it’s perfect when it looks glossy and delicious!
Finally, serve your spicy tofu over rice. Don’t forget to garnish with toasted sesame seeds and diced green onions. It adds that nice finishing touch!