This is an amazingly flavored marinade! I made a few changes in the recipe due to having slightly different things on hand. I used white onions instead of red, and used beef brisket instead of skirt steak. (Because of that big change, I grilled it over lower heat, for a longer time, until medium doneness.) I also added the salt and cumin directly into the marinade, only because (oops!) I scanned the directions too quickly and that's what I thought it said to do. I used Fat Tire for the beer. Also, I didn't use chipotle hot sauce because my kids think it's too spicy, but used a similarly flavored ancho sauce that has the same kind of smokiness but less heat. All that said and done, this is one OUTSTANDING marinade! The meat was delicious! My husband and kids gave it a resounding 5-stars, said they thought it broke the scale and ought to have been 6 stars. Thanks, bobo! Made for PAC Fall 2008.