Learn how to make the famous In-N-Out Animal Style Fries at home with this easy, copycat recipe! Crispy fries topped with gooey melted cheese, caramelized onions, and a creamy special sauce make this dish the ultimate indulgent treat. Perfect for In-N-Out fans, this homemade version uses simple ingredients and delivers all the classic Animal Style flavors. Discover the secrets to making the best animal style fries that are a perfect side for burgers, family gatherings, or satisfying late-night cravings.
Ingredients
Special Sauce:
- 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)
Fries:
- 1/2 bag frozen fries
- Cheddar cheese or American cheese (sliced or grated)
Caramelized Onions:
- 2 onions, finely diced
- 2 tbsp butter
- 1 tbsp neutral oil (such as vegetable or canola oil)
- 1/2 tsp salt
Instructions
- Caramelize the Onions:
- In a large skillet, melt the butter with the oil over medium-low heat.
- Add the diced onions and sprinkle with salt. Stir occasionally, allowing the onions to cook slowly until caramelized and golden brown. This can take 30 minutes or more. If the onions begin to burn, lower the heat.
- Once caramelized, set aside.
- Prepare the Special Sauce:
- In a bowl, whisk together mayonnaise, ketchup, vinegar, sweet relish, sugar, and optional chili flakes until well combined. Set aside.
- Cook the Fries:
- Follow the instructions on the frozen fries package to bake or fry them until crispy.
- Assemble the Fries:
- When the fries are ready, place them on an oven-safe dish or baking sheet.
- Sprinkle with grated cheddar or lay slices of American cheese over the fries, then broil for 3–5 minutes until the cheese melts.
- Top with caramelized onions and drizzle generously with the special sauce.
- Serve and Enjoy!
- Enjoy your homemade Animal Style Fries while they’re hot and gooey!
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