Step 1

Add the white wine, vinegar, and shallots to a medium-size saucepot and cook over low to medium heat until there are about 2 tablespoons of liquid left.

Step 2

Add in the butter and immediately begin to vigorously whisk the mixture until the butter is almost completely melted.

Step 3

Remove from the heat and whisk until the mixture becomes melted and smooth.

Step 4

Season with salt and optionally strain and serve.