Short and squat with a thick, heavy base, the Old Fashioned glass holds about 6 to 10 ounces of liquor and is ideal for stronger drinks served on the rocks with ice or neat. A popular choice is the set of two Sun's Tea Manhattan Style Old-Fashioned Scotch/whiskey glasses. They hold 9 ounces and have a double-wall structure to keep the cold drink cold for a long time. They're dishwasher safe and made of lead-free borosilicate glass. Try making this Slushy Cherry Old Fashioned Cocktail recipe in an old fashioned glass.