The phrase "cup cider" refers to a drink made by using a cup to hold and serve cider, which is a type of alcoholic or non-alcoholic apple juice. Full definition
Bring 1/4 cup cider vinegar, 2 tablespoons of sugar, and 1/2 teaspoon salt to a boil in a small saucepan over a medium flame. (biggirlssmallkitchen.com)
• 1 cup club soda • 1 cup good beer (Shiner Bock preferred) • 1 teaspoon kosher salt • 1 pinch crushed red pepper flakes • 1 3/4 cups flour • 4 semi-boned quail, cut into quarters • 6 cups peanut oil • 1 cup Cider Adobo (to follow) (fieryfoodscentral.com)
Boil remaining 1/2 cup cider in a small, heavy saucepan until it reduces to 1/4 cup, for about 5 minutes. (styleathome.com)