- Freshly squeezed lemon juice
- Cayenne pepper
- Coarse salt
- ½ cup (1 stick) unsalted butter, cut into small pieces
- 2 large egg yolks
1. In a heatproof bowl, set over (but not touching) simmering water, whisk together yolks with 1 tablespoon water until fluffy and doubled in volume. Whisk in butter until melted and well combined; mixture should thicken and coat the back of a spoon. Season with salt, cayenne pepper, and lemon ju...