It is usually made of some combination of blue cheese, mayonnaise, and buttermilk, sour cream or yogurt, milk, vinegar, onion powder, and garlic powder.

It is commonly served as a dip with Buffalo wings or crudités (raw vegetables).

[7] Separation of water and oil (instability of the emulsion) is a potential problem with blue cheese dressing.

Studies have shown that Saccharomyces bailii and Lactobacillus fructivorans are two common microorganisms that spoil salad dressings.

[9] Lactobacillus fructivorans is a facultative anaerobe that is acid tolerant, and can survive in a low pH food such as blue cheese dressing.