Is barbacoa spicy?
It is more smoky and warm than face-melting. For mild barbacoa, use 1 chipotle pepper (instead of 2) and remove the seeds and membranes (the inner veins) from the dried chiles. For extra heat, add another chipotle or a pinch of cayenne.
What cut of beef is best for crockpot barbacoa?
Beef chuck roast is the sweet spot. Brisket also works but tends to be pricier. Round roasts can be lean and may shred a little drier, so if you use one, add a touch more broth and do not overcook.
Do I have to sear the beef first?
Nope. Searing adds a little extra depth, but the chile sauce does heavy lifting here. If you have 5 minutes and want the bonus flavor, go for it. If not, skip it and do not feel bad about it.
Can I use ground spices instead of whole dried chiles?
You can, but the flavor will be flatter. If you absolutely need a shortcut, use 2 to 3 tablespoons chili powder plus the chipotle in adobo, and reduce the broth slightly so it does not get watery.
Why is my barbacoa bitter?
The most common culprit is over-toasted dried chiles. Lightly toast just until fragrant, then stop. Bitterness can also happen if the sauce is a little rough from the chile skins, especially with a lower-powered blender. If it still tastes bitter or harsh, strain the blended sauce through a fine-mesh sieve before cooking. (Also, save the vinegar and lime for the end, which keeps the flavor bright instead of sharp.)
How do I thicken the sauce?
After shredding the beef, pour the sauce into a saucepan and simmer for 8 to 12 minutes to reduce. Or stir in a quick slurry of 1 teaspoon cornstarch + 1 tablespoon water and simmer until glossy.