What cut of beef is best for bo kho?
Beef chuck is the sweet spot: it gets tender and stays flavorful. Brisket works too, and beef shank is amazing if you want extra richness, but it can take longer.
Do I need a bo kho seasoning packet?
Nope. Some people use them, but you can get a great result with Chinese five spice, paprika or annatto (optional), and whole spices like star anise and cinnamon. The lemongrass and fish sauce do a lot of heavy lifting.
What is the red color, and do I need annatto?
That signature brick-red color often comes from annatto oil. You do not need it, but if you want the classic look, use the optional annatto step below. Paprika helps too, but annatto reads more traditional.
How do I keep lemongrass from getting stringy?
Two easy options: (1) Bruise the stalks and add them in big pieces, then remove them later like bay leaves, or (2) mince only the tender inner part. If you slice rounds, keep them thicker and plan to strain for a smoother broth.
Can I make bo kho in an Instant Pot?
Yes. Brown the beef using Sauté, then pressure cook on High for 35 minutes with a 10 minute natural release. Check a piece of beef. If it is not fork-tender yet, pressure cook 5 to 10 minutes more. Add carrots after pressure cooking and simmer on Sauté until tender so they do not turn to mush.
How do I thicken the broth?
Simmer uncovered for 10 to 15 minutes at the end. If you want it thicker faster, mash a few carrot pieces into the broth, or whisk 1 tablespoon cornstarch with 2 tablespoons cold water and stir it in while simmering.
How strong is the five spice flavor?
It depends on the brand. If you are sensitive to five spice, start with 1 1/2 teaspoons, then add more at the end if you want extra warmth.
What should it taste like?
It should be savory, lightly sweet, and fragrant. If it tastes flat, add a touch more fish sauce or salt. If it tastes sharp, add a pinch of sugar. If it needs brightness, a squeeze of lime at the table fixes a lot.
