
In a medium bowl mix the ingredients to create tempura batter; flour, cornstarch, baking powder, salt, water, egg whites and oil until smooth.
Add the chicken cubes and coat them well in the batter.
Deep fry the chicken cubes until crisp and golden for 4-5 minutes.
Heat a medium pan, add oil and garlic. Saute for 2 minutes.
Add the chicken back to the pan, add sweet chili sauce, red pepper and toss the chicken until coated.
Finally sprinkle some sesame seeds and green onions, toss and serve while it is still warm.