Wash and dry 1 orange with hot water and finely grate half of the peel. Squeeze all the oranges. Peel the ginger and grate finely. Peel and finely chop the garlic as well.
Put the orange juice, orange peel, ginger, garlic, soy sauce and sugar in a saucepan.
Wash, dry and cut the chicken into pieces. Whisk eggs in a bowl and season well with salt and pepper. Put the flour and breadcrumbs in bowls as well. First turn the chicken pieces one after the other in the flour, then pull them through the egg and finally bread with the breadcrumbs.
Line a baking sheet with parchment paper and grease with about 2 tablespoons of oil. Place the chicken pieces on top and turn them once so that both sides are greasy. Put the tray in the oven and bake the chicken for about 25-30 minutes until crispy. Turn once.
In the meantime, bring the orange juice mixture to the boil, then reduce the heat and simmer covered for 20 minutes. Season well with pepper. Then dissolve the starch in a little water and bind the sauce with it. Roast the sesame seeds dry in a pan until they start to smell. Wash the spring onions and cut into rings.
Mix the hot chicken with the orange sauce and sprinkle with the sesame seeds and spring onions.