Start your rice in the rice cooker, Instant Pot, or however you'd normally make it.
In a large bowl, combine all batter ingredients and wisk until well-mixed. Batter should be thick enough to coat cauliflower, but not super heavy. I'd compare it to a pancake batter. Add more water to thin or flour to thicken as needed if it's not quite there.
Line a couple baking sheets with parchment or silicone pads.
This next step can be done a couple different ways. You can either dip each piece of cauliflower in the batter individually, or throw them all in the bowl at once. I do the latter, make sure they're all coated, then fish them out with a large slotted spoon.
Either way, place the coated cauliflower pieces onto the baking sheets, making sure they're not touching each other or they'll end up stuck that way!
Bake for 20 minutes, or until batter is cooked through. The thicker the batter, the longer the cook time. When done, remove from oven and let cool a bit.
While that cools, whisk the cold water and cornstarch together and set aside.
In a nonstick wok or other large nonstick pan, place broccoli and a few tablespoons of water. Heat on medium, covered, until broccoli is cooked yet still crunchy. Turn off heat and drain any excess water. Keep broccoli in the wok.
While the broccoli cooks, in a small saucepan, combine the rest of the sauce ingredients and whisk together until well-mixed. Heat sauce on medium, stirring often, until it reaches a low boil (watch it!).
Give the cornstarch another whisk and stream it into the sauce, stirring it in to avoid lumps. Continue stirring until sauce begins to thicken. Turn off heat.
Add cauliflower pieces and enough sauce to coat everything to wok. Turn heat back on while you stir everything to coat and heat.
Your rice should be done by now. Serve coated cauliflower and broccoli over rice and add extra sauce if desired. Sprinkle sesame seeds on top.
If you like a spicier version, add sriracha sauce and stir it in. It adds a nice chili-garlic flavor and kick to this dish!
General Kev's Sesame Cauliflower - KevCooksPlants.com