Ingredients:
- 2 medium shallots, finely minced (approximately ¼ cup)
- 1/2 cup dry white wine (such as Sauvignon Blanc or Pinot Grigio)
- 2 tablespoons white wine vinegar
- 1/4 cup heavy cream
- 1 cup (2 sticks) unsalted butter, very cold, cut into small cubes
- Salt and freshly ground white pepper, to taste
- Optional: 1 tablespoon chopped fresh herbs (such as chives, parsley, or tarragon)
Instructions:
- Combine shallots, white wine, and white wine vinegar in the saucepan. Bring to a simmer over medium heat.
- Simmer until almost all the liquid has evaporated, leaving a syrupy consistency (about 1-2 tablespoons remaining). Watch carefully to prevent burning!
- Stir in heavy cream and bring back to a simmer. Reduce slightly, about 1 minute.
- Remove the saucepan from the heat. Begin whisking in the cold butter, one or two cubes at a time. Whisk constantly and vigorously until each addition is fully incorporated before adding more. Important: Do NOT let the sauce get too hot. If it starts to look greasy, remove it from the heat immediately and whisk vigorously.
- Season with salt and white pepper to taste. If desired, stir in chopped fresh herbs.
- For an ultra-smooth sauce, strain through a fine-mesh sieve (optional).
- Place the saucepan in a bowl of warm water to keep the sauce warm until ready to serve (but do not overheat) (optional).