In-N-Out Animal Style Sauce (Copycat)
In-N-Out Animal Style Sauce (Copycat)
Ingredients
For the Caramelized Onions
- 1 yellow onion, finely diced
- 1 tablespoon butter, or olive oil
For the Sauce
- 1/2 cup Japanese mayonnaise
- 1/4 cup ketchup
- 2 tablespoons sweet pickle relish
- 1 teaspoon yellow mustard
- 1/2 teaspoon white vinegar
- 1/4 teaspoon salt, or to taste
- 1/8 teaspoon black pepper, freshly ground, or to taste
Instructions
- 1
Finely dice the yellow onion. In a medium skillet, melt the butter (or heat olive oil) over medium-low heat. Add the diced onions and cook slowly, stirring occasionally, for 20-25 minutes, or until deeply golden brown and caramelized. Remove from heat and let cool slightly.
⏱️ 25 min
- 2
In a medium mixing bowl or a mason jar, combine the Japanese mayonnaise, ketchup, sweet pickle relish, yellow mustard, and white vinegar.
⏱️ 3 min
- 3
Add the cooled caramelized onions to the sauce mixture.
⏱️ 1 min
- 4
Season with salt and freshly ground black pepper. Stir all ingredients thoroughly until well combined and smooth. Taste and adjust seasoning if necessary.
⏱️ 2 min
- 5
Cover the sauce and let it rest in the refrigerator for at least 7 minutes to allow the flavors to meld. For best results, let it chill for 30 minutes to an hour.
⏱️ 7 min
- 6
Serve the In-N-Out Animal Style Sauce with burgers, fries, or as a dipping sauce.
⏱️ 1 min
Kitchen Tools
Nutrition Facts (per serving)
In-N-Out Animal Style Sauce (Copycat)
For the Caramelized Onions
- 1 yellow onion, finely diced
- 1 tablespoon butter, or olive oil
For the Sauce
- 1/2 cup Japanese mayonnaise
- 1/4 cup ketchup
- 2 tablespoons sweet pickle relish
- 1 teaspoon yellow mustard
- 1/2 teaspoon white vinegar
- 1/4 teaspoon salt, or to taste
- 1/8 teaspoon black pepper, freshly ground, or to taste
Instructions
- 1
Finely dice the yellow onion. In a medium skillet, melt the butter (or heat olive oil) over medium-low heat. Add the diced onions and cook slowly, stirring occasionally, for 20-25 minutes, or until deeply golden brown and caramelized. Remove from heat and let cool slightly.
⏱️ 25 min - 2
In a medium mixing bowl or a mason jar, combine the Japanese mayonnaise, ketchup, sweet pickle relish, yellow mustard, and white vinegar.
⏱️ 3 min - 3
Add the cooled caramelized onions to the sauce mixture.
⏱️ 1 min - 4
Season with salt and freshly ground black pepper. Stir all ingredients thoroughly until well combined and smooth. Taste and adjust seasoning if necessary.
⏱️ 2 min - 5
Cover the sauce and let it rest in the refrigerator for at least 7 minutes to allow the flavors to meld. For best results, let it chill for 30 minutes to an hour.
⏱️ 7 min - 6
Serve the In-N-Out Animal Style Sauce with burgers, fries, or as a dipping sauce.
⏱️ 1 min