What does beurre noisette refer to?

Beurre noisette specifically refers to browned butter, which is a technique that involves cooking unsalted butter until it melts and the milk solids begin to brown. This process not only alters the color of the butter to a golden brown but also enhances its flavor, bringing out a rich, nutty aroma that lends itself well to various culinary applications. The term "noisette" translates to "hazelnut" in French, which is reflective of both the color and the toasted flavor profile achieved during this cooking process. This transformation of butter is commonly used in sauces, pastries, and various dishes to add depth and complexity to the overall flavor. Hence, the identification of beurre noisette as browned butter captures the essence of this culinary technique.