Easy Copycat In-N Out-Sauce

by Mike Futia

Updated November 27, 2024

5 from 1 vote

In-N-Out sauce is one of the absolute best burger sauces on the planet. And now you can make it at home in less than 5 minutes with this copycat In-N-Out sauce recipe.

copycat in n out sauce

Copycat In-N-Out Sauce Ingredients

This recipe makes about 10 ounces of sauce.

  • Mayonnaise (1 cup)
  • Ketchup (1/3 cup)
  • Sweet pickle relish (1/4 cup)
  • White vinegar (2 tsp)
  • Granulated sugar (2 tsp)
  • Salt & pepper (to taste)

Copycat In-N-Out Sauce Recipe Instructions

@grillfrenzy Comment "recipe" or "sauce" for the full recipe with all of my KEY tips sent straight to your DMs (make sure you follow me and your message requests are open to ensure you receive it)! A homemade In-N-Out style sauce is an absolute game-changer when you nail it and it's SO good on burgers, fries, or even as a dipping sauce! My version only requires a few pantry staples and less than 5 minutes to make! Find the full recipe with all my key tips on the blog - link in my profile! Or comment to get the recipe link DMed straight to you! #grillfrenzy #easyrecipes #burgerrecipes #sauces #innout #burgersauce #copycatrecipe #homemadesauce ♬ original sound - Mike Futia

1. Combine All Ingredients

copycat in n out sauce ingredients

Combine all ingredients in a medium bowl, mixing well.

2. Cover & Refrigerate

copycat in n out sauce ingredients mixed

Cover with plastic wrap and let the sauce meld together in the refrigerator for at least 30 minutes.

3. Serve & Enjoy!

copycat in n out sauce ingredients on burger

Serve and enjoy on your favorite smash burger and with fries! 

Copycat In-N-Out Pairing Instructions

This sauce goes perfectly—of course—with smash burgers and smash burger tacos. And with my Copycat In-N-Out Double-Double burger.

Expert Tips for Making Copycat In-N-Out Sauce

copycat in n out sauce on spoon
  • Refrigerate the sauce. The longer you can let the sauce sit in the fridge, the better. Give it at least 30 minutes, but more than an hour is ideal—this gives the sauce the chance to meld together and develop fully.
  • Mix thoroughly. Take the time to mix all of the ingredients together really well. This gives the In-N-Out sauce better consistency and a more even flavor.
  • Use distilled white vinegar. This is not the time to substitute red wine vinegar or apple cider vinegar. The distilled white vinegar is key to getting the tang from the classic In-N-Out sauce.

Copycat In-N-Out Sauce Recipe

5 from 1 vote
Make the famous In-N-Out burger sauce at home with this quick and easy copycat recipe. This creamy, tangy sauce perfectly replicates the iconic spread that makes In-N-Out burgers so special.
SERVINGS
Servings: 10 ounces
Prep Time: 5 minutes
Refrigeration: 30 minutes
Total Time: 35 minutes

Ingredients  

  • 1 cup mayonnaise
  • 1/3 cup ketchup
  • 1/4 cup sweet pickle relish
  • 2 tsp white vinegar
  • 2 tsp granulated sugar
  • salt & pepper to taste

Instructions

  • Combine mayonnaise, ketchup, sweet pickle relish, white vinegar, and sugar in a medium bowl.
  • Season with salt and pepper to taste.
  • Mix all ingredients thoroughly until well combined.
  • Cover with plastic wrap and refrigerate for at least 30 minutes.

Notes

  • For best results, refrigerate longer than 30 minutes to allow flavors to fully develop
  • Use distilled white vinegar specifically, not other vinegar varieties
  • Mix ingredients thoroughly for the best consistency
  • Store in an airtight container in the refrigerator
  • Perfect for burgers, fries, and smash burger tacos

Nutrition

Calories: 172kcalCarbohydrates: 5gProtein: 0.3gFat: 17gSaturated Fat: 3gPolyunsaturated Fat: 10gMonounsaturated Fat: 4gTrans Fat: 0.04gCholesterol: 9mgSodium: 265mgPotassium: 29mgFiber: 0.1gSugar: 4gVitamin A: 130IUVitamin C: 0.4mgCalcium: 3mgIron: 0.1mg
Tried this recipe?Let us know how it was!

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Mike Futia


My name is Mike, and I'm the founder of Grill Frenzy. I love cooking up homemade grilling and smoker recipes in my backyard for my friends and family. Learn more about me.

5 from 1 vote (1 rating without comment)

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