Lemon Honey Garlic Cauliflower

Name: Lemon Honey Garlic Cauliflower
Ingredients: 450 grams cauliflower (about half a head); 1/2 cup cornstarch; 1/4 cup all-purpose flour; 1/4 teaspoon kosher salt (for batter); 1/2 teaspoon paprika; 1/2 teaspoon garlic powder; 1/2 cup water (for batter); 3 tablespoons soy sauce; 1 pinch kosher salt (for sauce); 1/4 tablespoon sesame oil; 2 tablespoons honey; 1/2 tablespoon brown sugar; 2 cloves of garlic, finely chopped; 1/4 teaspoon red pepper flakes; 1 tablespoon fresh lemon juice; 1 tablespoon water (for sauce); 1/2 tablespoon cornstarch (for slurry); 1/2 tablespoon water (for slurry); 4 tablespoons vegetable oil (for frying); 1 slice of lemon (optional); 1/4 teaspoon sesame seeds (optional)