Begin by preparing a large mixing bowl. Into this bowl, combine the cream cheese with the mayonnaise, shredded sharp cheddar cheese, diced jalapeños, 240ml of the bacon crumbles, the optional red onion, black pepper, and Cayenne pepper. Stir the mixture thoroughly until it achieves a light and fluffy consistency. This mixture will form the basis of the cheese balls.

Proceed by spreading the remaining bacon crumbles onto a shallow dish, creating an even layer. Utilizing a cookie scoop, portion the previously prepared cheese mixture, shaping each portion into an individual ball. One at a time, roll these cheese balls in the bacon crumbles until they are completely coated, ensuring an even layer on all sides.

Following the coating process, place the bacon jalapeño popper cheese balls into the refrigerator to chill. They should remain there until such time as they are to be served. This will allow the flavors to fully integrate and the cheese balls to firm up, making them easier to handle and consume.