Bull Frogs (slush)

Yield: 1 gallon. Mix the limeade, 1 liter of the 7-Up and the vodka together, mixing well. (Vodka and 7-Up may be adjusted to taste, but the overall mixture should look 'slushy' as opposed to 'watery'.) Add green food coloring if desired. Pour the loose slush into a container, cover, and place in freezer (an old 1 gallon plastic ice cream bucket works wonderfully for this). This mixture can be stored in the freezer for many months. To serve, use an ice cream scoop and fill cocktail glass halfway full with frozen slush. Fill the glass the rest of the way full with 7-Up soft drink (from the remaining liter bottles); stir. The result should be a light green 'slush' drink that tastes quite a bit like a Margarita. Refreshing on a warm day, and good to just have on hand for last minute company.