The phrase "little cayenne" refers to something or someone that has a small but noticeable amount of heat or spiciness, similar to the flavor of cayenne pepper. Full definition
I have made a sauce similar to this, but with lemon juice, oregano and other Italian spices, (personally I don't think little cayenne or red pepper flakes hurt) and fresh sweet peppers. (howweflourish.com)
The spicy hoisin sauce is made by adding a little cayenne pepper to store - bought hoisin sauce. (topsecretrecipes.com)
Raw, Vegan, Gluten Free Strawberry Cream Tarts with a little Cayenne kick! (rawrevive.com)