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|Type||Salad dressing or dip|
|Place of origin||United States|
|Main ingredients||Mayonnaise, sour cream, yogurt, blue cheese, milk, vinegar, onion powder, wine, cumin , garlic powder|
|Variations||Blue cheese vinaigrette|
Blue cheese dressing is a popular salad dressing and dip in the United States. It is usually made of some combination of blue cheese, mayonnaise, and buttermilk, sour cream or yogurt, milk, vinegar, onion powder, and garlic powder. There is a blue cheese vinaigrette that consists of salad oil, bleu cheese, vinegar, and sometimes seasonings.
Separation of water and oil (instability of the emulsion) is a potential problem with bleu cheese dressing. Microbial spoilage is a concern for any type of processed food. Studies have shown that Saccharomyces bailii and Lactobacillus fructivorans are two common microorganisms that spoil salad dressings. Lactobacillus fructivorans is a facultative anaerobe that is acid tolerant, and can survive in a low pH food such as blue cheese dressing.