Copycat In-N-Out Animal Style Fries Recipe

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These fries are golden, crispy, smothered with melted American cheese, caramelized onions, and that famous tangy-sweet “spread” (In-N-Out’s version of Thousand Island dressing). Perfect for satisfying late-night cravings or impressing friends with a taste of California comfort food!

 Preparation Time

  • Prep Time: 15 minutes

  • Cook Time: 25 minutes

  • Total Time: 40 minutes

 Ingredients

For the Fries:

  • 4 large russet potatoes (or frozen French fries for convenience)

  • 2 tbsp vegetable oil (or more for deep frying/air frying)

  • Salt, to taste

For the Caramelized Onions:

  • 2 medium yellow onions, finely chopped

  • 2 tbsp butter

  • 1 tsp sugar (optional, helps with caramelization)

  • Pinch of salt

For the “Animal Style” Spread:

  • ½ cup mayonnaise

  • 3 tbsp ketchup

  • 2 tbsp sweet pickle relish

  • 1 tsp white vinegar

  • ½ tsp sugar (optional)

Toppings:

  • 6–8 slices American cheese (or cheddar, if you prefer)

 Instructions

Step 1: Prepare the Fries

  1. Wash and peel the potatoes, then cut them into thin fries.

  2. Soak fries in cold water for at least 30 minutes to remove excess starch (makes them crispier).

  3. Drain, pat dry, and toss with a little vegetable oil.

  4. Bake at 425°F (220°C) for 25–30 minutes, fry in oil at 350°F (175°C) until golden, or air fry for 20 minutes.

  5. Season with salt while hot.

Step 2: Caramelize the Onions

  1. Heat butter in a skillet over medium-low heat.

  2. Add onions and a pinch of salt. Stir occasionally.

  3. Cook low and slow (about 15–20 minutes) until onions are golden brown and soft. Add a teaspoon of water if needed to prevent burning.

Step 3: Make the Animal Style Spread

  1. Mix mayonnaise, ketchup, pickle relish, vinegar, and sugar in a bowl.

  2. Stir until smooth and creamy. Chill until ready to use.

Step 4: Assemble the Fries

  1. Place hot fries on a serving plate.

  2. Lay slices of cheese over fries so they melt slightly.

  3. Spoon caramelized onions over the cheese.

  4. Drizzle generously with the Animal Style spread.

 Tips for Success

  • Extra Crispy Fries: Double fry them—first fry at 325°F (160°C), then fry again at 375°F (190°C).

  • Shortcut: Use frozen crinkle-cut fries to mimic the In-N-Out style.

  • Spread Swap: Add a dash of hot sauce to the spread for a spicy kick.

  • Meal Upgrade: Serve alongside a copycat Double-Double burger for the full In-N-Out experience.

 Calories (per serving, approx.)

  • Calories: 480

  • Protein: 9g

  • Carbs: 47g

  • Fat: 28g

  • Fiber: 4g

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