This 4 ingredient Smash Burger Sauce is easy and will make you feel like you're eating a genuine Smash Burger.
This is a super easy, not-too-secret recipe. You can go to any Smash Burger location and ask an employee what's in their sauce. They will say mustard, mayo, pickle sweet relish, and lemon juice.
It's a simple yet excellent burger sauce. I love slathering this on a homemade turkey smash burger in this.
Ingredients & Substitutions
Mayonnaise: You can use regular or light (for fewer calories).
Yellow Mustard: This sauce should have a strong mustard taste, add more if 2 tablespoons aren't enough for you.
Sweet Relish: Smashburger uses sweet relish, but I think using a spicy relish would give the sauce a unique spin.
Lemon Juice: It brightens up the sauce and adds more flavor. You don't want to skip it!
How to Make Smash Sauce
- Mix all the ingredients together.
- Adjust to taste.
- Slather on your burger, or use it as a sauce for your fries.
What is Smashburger Sauce?
On their site, they call it a relish mustard. If you ask an employee, they will tell you it's a mixture of French's mustard, mayo, pickle sweet relish, and lemon juice.
It's a great topping for burgers and a dipping sauce for fries.
What to Put Smash Sauce On
Recipe Questions
It can keep for up to a week in the fridge if stored in an airtight container.
No, but Smash burgers do come with their signature sauce and ketchup. So while it's not mixed into the sauce, it is on the burger.
4 Ingredient Smash Sauce
Ingredients
- ½ cup mayonnaise
- 2 tablespoons yellow mustard French's
- 2 tablespoons sweet relish
- 1 tablespoon lemon juice
Instructions
- Mix all the ingredients together.
Notes
Nutrition
The nutritional information provided is an estimate and may vary based on the ingredients used.
Did you make this recipe? Let me know!