In a large bowl, mix all the ingredients together until well combined.
Store the mixture in an airtight container for up to 6 months.
Notes
If you are unable to find some of the ingredients in powder form, you can grind them yourself in a coffee grinder or food processor. Feel free to adjust the ingredients to taste. Add more or less of any ingredient to suit your taste preferences.
Add 1 teaspoon of the Worcestershire sauce powder to 1 cup of boiling water. Stir until fully dissolved.