Making nachos at home gives you the freedom to use a tastier, fancier cheese instead of processed nacho cheese, but those nicer cheeses quickly harden, or separate and become gloppy. To keep your melted cheese perfectly smooth, Scott Heimendinger, director of applied research for Modernist Cuisine, shares this trick from the Modernist Cuisine at Home cookbook: Simply add sodium citrate.
What to buy: Sodium citrate, or sour salt, is an emulsifying sodium salt that comes from citric acid. It has a sour taste and is usually used as a food additive for preserving or flavoring. You can buy it online.
Special equipment: You’ll need a gram scale to measure the sodium citrate for this recipe. You’ll also need an immersion blender to combine the cheeses.
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