Coarsely crush green pepper, Szechuan pepper and pimento. Peel shallots and garlic and dice finely. Wash oranges hot, rub dry. Grate peel, halve oranges and squeeze juice.
Heat the oil in a pot. Sauté garlic, shallots and crushed spices, sprinkle with sugar and allow to caramelize. Deglaze with vinegar, Worchestershiresauce, orange juice and 300 ml water.
Simmer for about 5 minutes while stirring.