Gather all the ingredients.

Measure each spice using measuring spoons.

In a mixing bowl, combine chili powder, paprika, cumin, garlic powder, onion powder, crushed red pepper flakes, salt, and black pepper.

Mix the spices thoroughly with a whisk or spoon until uniformly blended.

Taste and adjust the spice levels according to your preference.

Transfer the seasoning blend into an air-tight container.

Label the container with the date for freshness.

Use the seasoning on grilled meats or veggies.