Powdered cayenne pepper vs chili powder may look similar, but they taste very different. While both of these spices contain capsaicin, the substance in hot peppers that makes your mouth burn, cayenne pepper usually packs a bigger punch.
Apart from different varieties of peppers, such as black, white, and cayenne pepper, cajun spice contains other spices and herbs. They can include onion powder, garlic powder, salt, thyme, rosemary, and oregano.
Some are common pantry staples, while others you might haven't heard of yet. Still, you can easily find each of the best paprika substitutes in your local grocery store or online.