- 1/2 cup heavy whipping cream
- 1/2 cup cider vinegar
- 3 eggs, beaten
- 5 tablespoons white sugar
- 1/4 cup dry mustard powder (such as Coleman's®)
- 1 dash salt
- Beat cream, vinegar, eggs, sugar, mustard powder, and salt together in a large bowl using an electric mixer until smooth and creamy.
- Bring a saucepan of water to a boil. Place the bowl over the boiling water and cook the sauce, stirring constantly, until thick, about 20 minutes.