It's springtime, and the temperatures are warming up. With Memorial Day weekend (the unofficial start of summer) just around the corner, it's time to think about cooler cocktails for the hottest months of the year. And one of my favorites is the classic Moscow Mule. So named because vodka is one of the key ingredients, no one knows for sure who invented the libation. We've named our American made Jack's Moscow Mule Cup after John "Jack" Morgan, the president of Cock 'n' Bull products and owner of Hollywood's Cock 'n' Bull restaurant in the early '40s. He along with two other friends experimented with vodka, ginger beer, and lime and came up with a tasty beverage that was worthy of its own name. It's one of the simplest concoctions to make. Just add 2 ounces of vodka and 3 to 4 ounces of ginger beer (ginger beer isn't beer at all, but a sweet soda; you can also use ginger ale if you're in a pickle and don't have any ginger beer ready) to a copper Moscow Mule cup or highball glass filled with ice. Stir briefly, then squeeze a couple of lime wedges into the drink. Stir again, drop the wedges in, and then sip and savor! It's one of the most refreshing ways to cool off your tastebuds on a warm day.