Cheers!

it's Friday! Y'all know what that means, it's sangria time, so let's whip some up.

You need:
2 cups Riesling (or other sweet white wine)
2 cups grapefruit juice1/2 cup orange liquor2 cups champagneFresh citrus slices such as lemons, oranges, grapefruit, clementineFresh mint for garnish

Then you:
Mix the wine, grapefruit juice, orange liquor and citrus slices.  Refrigerate for at least 2 hours. Then when you're ready to serve, mix in champagne and stir.  Pour and garnish with fresh citrus slice and a sprig of mint. Enjoy! 

Via.