This is the perfect copycat In N Out sauce that tastes exactly like the spread you get at the restaurant. After a lot of research (and even calling to verify ingredients) I'm excited to share the sauce recipe with you! This recipe makes about 1 cup of sauce.
Prep time: PT5M
Total time: PT5M
Rating
5 stars (1 reviews)
Keywords
copycat in n out sauce, in n out burger sauce, in n out burger sauce recipe, in n out sauce, in n out sauce recipe
Ingredients
2 tbsp distilled white vinegar
1/2 tsp sugar
¼ tsp ground mustard
½ tsp kosher salt
1 cup mayonnaise (use Best Foods/Hellmann’s Mayonnaise)
1/3 cup ketchup (Heinz is best)
2 tbsp sweet pickle relish
Categories
Sauce
Cuisine
American
Steps
In a small mixing bowl, mix together distilled white vinegar, sugar, ground mustard, and salt. Mix well until the sugar, mustard, and salt have dissolved.
To the same bowl, add mayonnaise, ketchup, and relish. Mix together and let sit for 10 minutes to allow the flavors to meld. Store in the fridge for up to 1 week.
Nutitrion
Serving Size: 1 serving
Calories: 104 kcal
Carbohydrates: 2 g
Protein: 0.2 g
Fat: 10 g
Saturated Fat: 2 g
Trans Fat: 0.03 g
Cholesterol: 6 mg
Sodium: 222 mg
Sugar: 2 g
Unsaturated Fat: 8 g
Reviews
Ellie on 2025-09-15 (5 stars): Super yummy and easy to make!