Cut chicken livers in half and remove any fat and gristle. Blend flour, paprika, salt and pepper in a bag. Add livers and shake to coat. Heat butter over medium high heat until it foams. Add chicken livers and saute until browned on all sides. Pour apple brandy or cider over livers. Stir and scoop livers into a warm serving dish. Add onions to same skillet and stir over medium heat until onions are tender. Transfer to same dish as livers. Heat remaining butter in same skillet and add apples and sugar. Stir over medium heat until apples are barely tender, 3 to 5 minutes. Return livers and onions to apples and toss together to reheat. Season to taste with additional salt and pepper. Makes 4 servings.