Stir to combine the spices thoroughly. Use 1/4 tsp chili flakes and cayenne pepper if you're after a milder spice blend.
Transfer the blend to a spice jar and label it including the date you mixed it.
Use the harissa powder mix as a marinade, dry rub, or to season soups, stews, and sauces. Start with 1 tsp of the blend and increase to taste.
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Notes
Adjust heat: Adjust the amount of red pepper flakes and cayenne pepper to increase or decrease the spiciness.Season dishes: Start with 1 teaspoon of harissa spice blend for a four-person dish, then adjust to taste.Storage:Store the spice blend in a sterilized airtight jar for up to 3 months for maximum flavor and freshness.