1. Kosher Salt
The foundation. Salt draws moisture to the surface, dissolves, then re-absorbs into the meat, seasoning from the inside out. It also breaks down surface proteins, which accelerates the Maillard reaction and helps bark form. Use Diamond Crystal kosher salt (lighter, flakier) or Morton's (denser; use 25% less). Never iodized table salt; the additives leave a metallic taste.
2. Coarse Black Pepper
The other half of the "Dalmatian rub," Texas-style brisket's signature. Coarse-cracked peppercorns create the crunchy texture in the bark and deliver a warm, aromatic bite. Fresh-cracked is non-negotiable; pre-ground pepper loses its volatile oils and tastes flat.
3. Garlic Powder
Adds savory depth (umami) without adding moisture. Garlic powder caramelizes beautifully at smoking temperatures, creating a sweet-savory note in the bark. Use 100% garlic powder with no anti-caking agents; those fillers dilute the flavor.
4. Onion Powder
Onion powder bridges the gap between salt and garlic, adding a slightly sweet, rounded savoriness. It also helps the rub "bind" to the meat surface; the sugars in onion powder get tacky when they hit moisture, creating a natural adhesive.
5. Smoked Paprika
Adds a second layer of smoke beyond what the wood provides, plus a deep red-mahogany color to the bark. Use smoked paprika (pimentón), not sweet or hot; the smoke flavor compounds complement the wood smoke without competing.
6. Cayenne Pepper
A small amount (1/4 to 1/2 teaspoon per pound) adds brightness and a slow background heat that lifts the other flavors without making the brisket "spicy." Think of cayenne as a flavor amplifier, not a heat source.