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Copycat In-N-Out Sauce

Copycat In-N-Out Sauce

Copycat In-N-Out Sauce is a creamy, tangy burger sauce made with mayonnaise, ketchup, and sweet pickle relish. This easy copycat in n out sauce recipe comes together in minutes and tastes just like the famous spread. Perfect for burgers, fries, and sandwiches, it brings that classic fast-food flavor straight to your kitchen.
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Prep Time 5 minutes
Total Time 5 minutes
Servings: 16 Servings
Course: Condiment, Sauce
Cuisine: American
Calories: 180
Ingredients Method Notes

Ingredients
  

  • 2/3 cup mayonnaise
  • 3 tablespoons ketchup
  • 2 tablespoons sweet pickle relish
  • 1 ½ teaspoons vinegar
  • 1/2 teaspoon white sugar
  • 1/4 teaspoon salt
  • 1/4 teaspoon ground black pepper optional

Method
 

Add the Base
  1. In a medium bowl, add mayonnaise and ketchup. Stir until smooth and evenly combined.
Mix in the Relish
  1. Add sweet pickle relish and stir well. This gives the sauce texture and that familiar burger flavor.
Balance the Flavor
  1. Pour in vinegar, sugar, salt, and black pepper. Stir until everything is fully mixed.
Taste and Adjust
  1. I always taste it at this stage. If I want it sweeter, I add a tiny pinch of sugar. If I want more tang, I add a few drops of vinegar.
Chill for Best Flavor
  1. Cover and refrigerate for at least 30 minutes. The flavors settle and taste even after chilling.

Notes

1. Chill before serving for better flavor.
2. Adjust sugar and vinegar to suit your taste.
3. Add Dijon mustard if desired.
4. For thinner sauce, add a teaspoon of water.
5. Use fresh relish for best texture.