In a large bowl, add all ingredients mix until well combined. Use a whisk to break up the brown sugar chunks, if necessary. The dry rub should be uniform in color.
Transfer and store in a sealed, air-tight container. I use an old jam jar. Store at room temperature, in your cupboard. It will keep for a long time, up to a year.
Use as a dry rub for chicken, fish, ribs, beef brisket, etc. Or sprinkle on top of french fries, burgers, roasted vegetables -- everything!
Notes
*If you'd like a spicier rub, add 1-2 Tbsp more mustard powder or cayenne.? Or both!