Set your oven to 200C (392F) and prepare a baking tray with foil or parchment.
Blend rice flour, cornstarch, oil, garlic powder, and water in a bowl until thick and smooth.
Dip the cauliflower florets in this batter, coating them evenly, then lay them out on the prepared tray in one layer.
Bake the cauliflower for 20-25 minutes until it’s tender yet still crunchy—avoid overbaking.
Meanwhile, combine sesame oil, soy sauce, rice vinegar, sriracha, ginger, and garlic in a small saucepan and simmer for 5-6 minutes.
Mix cornstarch and water together, then stir into the simmering sauce.
Continue cooking the sauce for another 2-3 minutes until it thickens, then remove from heat and stir in the honey.
Taste the sauce and adjust seasoning if needed.
Once the cauliflower is cooked, toss it thoroughly in the sauce.
Sprinkle with sesame seeds, chopped spring onions, and sliced chillis before serving.
Enjoy your delicious Sticky Sesame Cauliflower fresh and hot!