Description

In-N-Out Copycat Animal Style Fries bring the iconic flavors of the famous fast-food chain straight to your kitchen. Crispy golden fries are topped with gooey melted cheese, sweet caramelized onions, and a tangy, homemade special sauce. This recipe carefully explains how to replicate every delicious layer of classic Animal Style Fries with easy-to-follow steps and options for customization.

Ingredients

1/2 cup mayonnaise
2 tbsp ketchup
1/2 tbsp rice vinegar or white vinegar
2 tbsp sweet relish
1 tbsp sugar
1/2 tbsp chili flakes (optional)
1/2 bag frozen fries
Cheddar cheese or American cheese
2 onions, diced
2 tbsp butter
1 tbsp neutral oil
1/2 tsp salt

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Instructions

Melt butter in a pan over medium low heat and add neutral oil.
Add diced onions and salt to the pan.
Stir onions every few minutes until caramelized, about 30 minutes.
In a bowl, mix mayonnaise, ketchup, vinegar, sweet relish, sugar, and optional chili flakes for the special sauce; set aside.
Bake or fry frozen fries according to package instructions.
Place cooked fries on a baking sheet, top with grated cheddar or sliced American cheese, and broil for 3 to 5 minutes until cheese is melted.
Top fries with caramelized onions and generous spoonfuls of special sauce. Serve immediately.

Notes

You can substitute vegan mayo and dairy-free cheese for a plant-based version. Make the sauce and caramelize onions ahead, storing in air-tight containers in the fridge for up to 3 days. Reheat gently to maintain flavor. If onions burn instead of caramelize, reduce heat and stir more often. For crispier fries, bake longer or use an air fryer. Try pickled jalapeños or smoked paprika for a spicy kick.

Prep Time: 10 minutes
Cook Time: 40 minutes
Category: Side Dish
Method: Baking, Sautéing
Cuisine: American