Ingredients

2 cups Cerignola olives 

1/4 cup extra-virgin olive oil, plus more for filling jars 

6 whole dried red chiles 

2 teaspoon sprigs rosemary, plus more for jars, rinsed and dried 

2 tablespoons white-wine vinegar 

Preparation

Heat oil in a medium skillet over medium heat. Add peppers and 2 sprigs rosemary; heat until fragrant. Toss with olives and vinegar. Let cool. Transfer to jars. Add a few fresh sprigs of rosemary. Fill jars with oil. Refrigerate immediately for at least 8 hours and up to 2 weeks.