Sometimes it's the simplest of sauces that can save the day. This past weekend I grilled up a mess of chili-spiced skirt steak tacos, and while the meat was incredibly flavorful, put together in a taco with the standard fixings, it was still missing something.

Sour cream alone wasn't delivering what I wanted, so I turned to this four-ingredient, quick cilantro cream I saw in Robb Walsh's The Tex-Mex Grill and Backyard Barbacoa Cookbook.

Not even taking the time to chop the cilantro, I threw a generous handful into the blender with sour cream, lime juice, and green onion. A quick whirl and out came a light green sauce that was cool and fresh, with enough acidity and tang to round out the tacos.

About the author: Joshua Bousel brings you new, tasty condiment each Wednesday and a recipe for weekend grilling every Friday. He also writes about grilling and barbecue on his blog The Meatwave whenever he can be pulled away from his grill.