Mix soy sauce, Hot Pepper Gochujang Paste (or sriracha sauce), rice vinegar, and black pepper powder in a bowl. Make sure there are no lumps in the sauce. Keep it aside.
Heat 2 tbsp of oil in a pan.
Saute grated ginger and minced garlic in oil until the raw smell of garlic goes away.
Add 2 tbsp of maple syrup to the pan and cook it till it gets bubbly while mixing frequently. This step should be quick.
Add 1 cup of mango puree and mix well. Cook till it starts to thicken while stirring frequently.
Once the mango sauce gets thick, add the prepared sauce to the pan.
Mix well and cook it for 3-4 minutes while stirring frequently.
Add ¾ cup of water to the sauce and mix well.
Bring it to simmer, and keep simmering for 2-3 minutes while stirring frequently.
Add sauted tofu and prepared broccoli. Mix well
Turn the heat off. Add cubed mango, cashews, cilantro and scallions.
Mix everything gently and serve it hot with steamed rice or quinoa!