In-N-Out Animal Style Fries (Printable View)

Cheesy fries loaded with caramelized onions and special tangy sauce inspired by a California classic.

# Ingredient List:

→ Special Sauce

01 - 1/2 cup mayonnaise
02 - 2 tablespoons ketchup
03 - 1/2 tablespoon rice vinegar or white vinegar
04 - 2 tablespoons sweet relish
05 - 1 tablespoon granulated sugar
06 - 1/2 tablespoon chili flakes, optional

→ Main Components

07 - 10 ounces frozen French fries (about 1/2 standard bag)
08 - 4 slices American cheese or 1 cup shredded cheddar cheese
09 - 2 large onions, finely diced
10 - 2 tablespoons unsalted butter
11 - 1 tablespoon neutral cooking oil
12 - 1/2 teaspoon kosher salt

# Preparation Steps:

01 - Melt butter in a large skillet over medium-low heat and add the neutral oil. Add the diced onions and salt. Stir every few minutes, allowing onions to slowly caramelize for at least 30 minutes or until deep golden brown, reducing heat if they begin to burn.
02 - Combine mayonnaise, ketchup, rice or white vinegar, sweet relish, granulated sugar, and chili flakes (if using) in a bowl. Mix thoroughly and set aside.
03 - Bake or fry the frozen French fries according to the package instructions until crisp and golden.
04 - Arrange the cooked fries on a baking tray, top evenly with American cheese slices or shredded cheddar cheese, and broil for 3 to 5 minutes until fully melted.
05 - Transfer cheese-topped fries to a serving platter, top generously with caramelized onions, drizzle with the special sauce, and serve immediately.

# Supplementary Details:

01 - Allow onions to cook slowly for maximum caramelization; stirring frequently prevents scorching. Serving immediately preserves optimal texture.