Which sauce is best for which steak cut?
Ribeye or strip: Peppercorn, because the richness loves black pepper and a creamy finish. Flank or skirt: Chimichurri, because it is bold and acidic and cuts through that beefy chew. Filet mignon: Blue cheese cream, because filet is mild and deserves a loud friend.
Can I make these sauces without alcohol?
Yes. Skip the cognac in the peppercorn sauce and use a little extra broth plus a squeeze of lemon at the end for brightness.
How do I keep a pan sauce from tasting greasy?
Two things: deglaze properly (scrape up the browned bits) and finish with acid (a few drops of lemon or a touch more Dijon). Also, if your steak was very fatty, pour off all but about 1 tablespoon of drippings before you start.
Can I make chimichurri with dried herbs?
You can, but it will not be the same sauce. Chimichurri gets its texture from a big pile of fresh herbs, and dried herbs cannot fully recreate that leafy body.
If dried is truly what you have, aim for a thicker, rehydrated version: use about 1/3 cup dried parsley plus 1 tablespoon dried oregano. Stir the dried herbs with the vinegar and salt first, then let it sit 15 to 20 minutes to hydrate. Add garlic, chili flakes, and then stir in the olive oil. It will taste good, just less bright and less fluffy than the fresh-herb version. If you have even a small handful of fresh parsley, chop it and stir it in at the end for a boost.
My cream sauce broke. Can I fix it?
Usually. Take it off the heat and whisk in 1 to 2 tablespoons cold cream, milk, or even a little cold butter. Next time, keep the heat low and avoid a hard boil.
How long does chimichurri keep?
It is best in the first 1 to 3 days. It can last up to 5 days in the fridge, but the raw garlic and herbs can get a little intense as it sits. Stir before serving.