Carefully cut the broccoli into bite-sized florets.
In a large bowl, combine the all-purpose flour, the plant-based milk, the water, nutritional yeast, paprika, garlic powder, onion powder, salt, & pepper. Stir well to combine.
Coat the broccoli florets completely in the batter, then coat them in the panko breadcrumbs.
Use silicone mats or line a baking sheet with parchment paper & lay the broccoli florets on the baking sheet. Space them out & bake them for 25 minutes at 350 °F.
Make the sauce while the broccoli wings bake by whisking the sriracha, soy sauce or tamari, rice vinegar, garlic, ginger, agave, sesame oil & together in a large bowl.
Transfer the baked broccoli wings to the bowl & evenly coat them with the sauce.
Put the coated broccoli back on the baking sheet lined with parchment paper & return to the oven to bake for another 20 minutes at 350 °F.
Garnish with green onions & sesame seeds & enjoy hot with your favorite sides.