1. In a small saucepan, combine the sugar, ketchup, vinegar, and the juice from the orange, including the squeezed orange with its peel. Boil until the sauce thickens.
For the rice:
1. Rinse the rice well 5-6 times until the starch is gone. The water from the last rinse should be clear. Put plenty of water in a saucepan and when it boils, add the rice. Cover the saucepan and boil until the rice is cooked. Drain. Cut the chicken into strips and place it in a bowl. Put the tempura flour in a bowl and add the ice-cold beer, stirring. Then, gradually add the ice-cold water and whisk until you have a thick batter. Put plenty of sunflower oil in a pan and heat it up. Dip the chicken in the batter and fry until cooked and nicely golden brown. Remove it to a plate lined with paper towels and set aside. Cut the vegetables into strips. Put a little sesame oil in a pan and sauté the vegetables along with the ginger. Add the chicken, a little of the sauce to the pan, and stir. Serve the sweet and sour chicken with the boiled rice.
For the bananas:
1. Peel the bananas and dip them in the tempura batter and fry until golden brown. Remove to paper towels. Serve drizzled with honey and sprinkled with sesame seeds.