Calimocho comes from combining two drinks most Americans would never think to mix: seriously cheap red wine and Coca-Cola.
This concoction originated in Spain and is enjoyed mostly by younger drinkers because it's inexpensive and easy to make.
Head to your nearest Trader Joe's and pick up a bottle of Charles Shaw red wine for $2 (a.k.a. “Two Buck Chuck”). It doesn't matter what variety of wine you choose, just as long as it's red. The only thing left is to buy a 2-liter bottle of Coca-Cola. Mix equal parts red wine and soda into a pitcher and you will have a refreshing drink that is a less-sweet version of sangria. And unlike sangria, calimocho is hard to screw up, so have fun tweaking the recipe to your particular taste. Try changing the ratio of wine to Coca-Cola, or if you're feeling adventurous, swap out the Coca-Cola for other brands of sodas.
There is only one rule when it comes to Calimocho: It is best enjoyed cold, so serve it on the rocks!