First - This recipe has no buttermilk - My father invented this in the 50s playing the Texas/New Mexico border towns as a musician.
It's perfect for summer and perfect for gatherings. Might think about getting a second pitcher though, because once you make them, they go quickly.
This recipe is inspired and is a tribute to an old friend. All of you faint of hearts don't be turned off by the title. This is not some smokin' hot cajun dish, it's not cajun nor spicy. This has just the hint of cayenne, and shouldn't have any more than that. It's soft, silky, delicate and should compliment your entree, not over take it.
You can use 1/4 teaspoon as two pinches and 1/8 as one pinch. And salt to taste.