INGREDIENTS
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Mayonnaise, hollandaise and Caesar salad dressings contain raw eggs which can carry salmonella bacteria. Pasteurized eggs are safer, but what if you can't find a store that sells them?
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Pasteurization is a process where food is heated to 140°F, killing harmful bacteria. Egg yolks would normally start to cook at 140°F, but you can use a microwave to pasteurize egg yolks without cooking them, so they can safely be used in mayonnaise
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How it works is by adding acid to the egg yolks — either in the form of lemon juice or vinegar. Adding acid raises the temperature at which egg yolks cook, so we can heat them to 140°F, killing the bacteria, but without cooking the egg.