Cream, onion, dry mustard, and vinegar come together with a touch of sugar in this easy spinach salad dressing recipe.
- 1 cup heavy whipping cream
- 1/4 cup white sugar
- 3 tablespoons grated onion
- 3 tablespoons white vinegar
- 1 teaspoon dry mustard
- 1/8 teaspoon ground black pepper, or more to taste
- Whisk cream, sugar, onion, vinegar, dry mustard, and pepper together in a bowl; refrigerate until flavors blend, 8 hours to overnight.