June 16, 2019 National Fudge Day! Free Scoop of Mackinac Fudge Ice Cream at Sadies Sadie's Ice Cream Parlor 1891 Cadotte Avenue, Mackinac Island, MI, United States It's National Fudge Day! Visit Sadie's Ice Cream Parlor for a free scoop of Mackinac Fudge ice cream! Sadie's is located at the east end of the Grand Hotel! First come first serve!