In same skillet, heat remaining 1 teaspoon oil. Add onion and garlic; cook about 5 minutes, stirring occasionally, until onion is tender. Stir in broth, wine and reserved matzo mixture. Return chicken to skillet. Heat to boiling; reduce heat. Cover; simmer 7 to 9 minutes or until juice of chicken is clear when centre of thickest part is cut (170ºF).