My “French Onion Butter” Is So Good, Everyone Demands the Recipe
French onion butter, a rich and flavorful twist on the classic French beurre blanc, is about to become your new secret sauce in the kitchen. Even better, it uses an ingredient you might already have in your pantry: onion soup mix. By combining the savory, onion-packed mix with white wine, butter, and a touch of cream, the result is a velvety sauce that has just the right balance of tanginess and richness. Perfect for dipping your chicken, steak, or even roasted potatoes into, it’s a quick and easy way to elevate your weeknight dinners.
Why You’ll Love It
A pantry shortcut makes it extra flavorful. Not only is it convenient, onion soup mix gives the sauce its savory, onion flavor.
It’s incredibly versatile. Use it as sauce for roast chicken and pan-seared steak, as a dip for crispy potatoes, or as a condiment to drizzle on roasted vegetables.
Key Ingredients in French Onion Butter
Onion soup mix: The dehydrated onions become soft, and the savory flavor packs a punch.
Dry white wine: Provides flavor and sweet acidity to balance out the richness of the sauce.
White wine vinegar: Adds some brightness and acidity.
Heavy cream: A couple tablespoons of heavy cream helps stabilize the emulsion for a creamier sauce.
Unsalted butter: Choose one with higher butterfat content, like European-style or Kerrygold butter, for a richer flavor.
Parmesan cheese: Add some grated Parmesan cheese at the end, away from the heat.
How to Make French Onion Butter
Simmer until reduced. Bring white wine, white wine vinegar, and onion soup mix to a simmer in a small saucepan over medium-low heat. Simmer until reduced to about 2 tablespoons. Stir in the heavy cream and simmer until slightly thickened, then reduce the heat to low.
Slowly add the butter. Whisk in the cold unsalted butter, one piece at a time, waiting until each piece is almost melted before adding the next.
Finish it off the heat. Remove the saucepan from the heat. Whisk in the grated Parmesan cheese, chopped fresh thyme, and black pepper.
What to Serve with French Onion Butter
French Onion Butter Recipe
The French onion flavor you love in a dippable butter sauce.
Prep time 5 minutes
Cook time 10 minutes
Makes Makes 3/4 cup
Serves 4
Ingredients
2 tablespoons dry white wine
2 tablespoons white wine vinegar
1 tablespoon plus 2 teaspoons onion soup mix, such as Lipton’s (about 1/2 [1-ounce] packet)
2 tablespoon heavy cream
8 tablespoon (1 stick) cold unsalted butter, cut into 8 pieces
2 tablespoons grated Parmesan cheese
1 tablespoon coarsely chopped fresh thyme leaves (from about 8 sprigs)
1/4 teaspoon coarsely ground black pepper
Kosher salt
Cooked chicken, steak, bread, or potatoes, for dipping (optional)
Instructions
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Bring 2 tablespoons dry white wine, 2 tablespoons white wine vinegar, and 1 tablespoon plus 2 teaspoons onion soup mix to a simmer in a small saucepan over medium-low heat. Simmer, stirring occasionally, until reduced to about 2 tablespoons, about 1 1/2 minutes.
Stir in 2 tablespoons heavy cream and simmer until slightly thickened, about 1 minute. Reduce the heat to low. Whisk in 1 stick cold unsalted butter a piece at a time, waiting until each piece is almost melted before adding the next. Do not let it come to a boil.
Remove the saucepan from the heat. Whisk in 2 tablespoons grated Parmesan cheese, 1 tablespoon coarsely chopped fresh thyme leaves, and 1/4 teaspoon coarsely ground black pepper. Taste and season with kosher salt as needed. Serve warm.
Recipe Notes
Storage: Refrigerate in an airtight container for up to 1 week or freeze for up to 6 months. Remelt on the stovetop over medium heat; do not let it boil.
Further Reading
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