This is an amazing and unique appetizer that can be made couple days ahead of your party.1 pound frozen pearl onion, thawed1/4 cup olive oil1/2 cup sugar1/8 teaspoon ground Annis seeds1/8 teaspoon crushed red pepper1 cup apple cider vinegar-Heat the olive oil and saute the onion over low heat for 5 minutes.-Add the sugar, Annis and the red pepper. Cook and stir until the sugar is caramelized --dark gold-- and the onions are darker and sticking to the pot.-Add the vinegar and gently stir until the caramel is dissolved. Simmer for 10 minutes and the sauce thicken. Remove from the heat. Cool and then serve.