In-N-Out Copycat Animal Style Fries are one of the most iconic fast-food side dishes, loved for their rich flavors, creamy texture, and indulgent toppings. While the original version is famously served at In-N-Out Burger, you don’t need to live near the West Coast to enjoy this classic. With a few simple ingredients and the right technique, you can recreate these legendary fries at home and enjoy the same bold, comforting taste.
This homemade version delivers crispy fries layered with melted cheese, slow-caramelized onions, and a signature creamy sauce that ties everything together. Whether you serve them as a snack, a side dish, or a main comfort meal, these fries are guaranteed to impress.
What Are Animal Style Fries?
Animal Style Fries are a special variation of classic French fries that are loaded with toppings. Instead of being served plain, the fries are covered with melted cheese, sweet caramelized onions, and a tangy, creamy sauce often referred to as “special sauce.”
What makes them so popular is the balance of flavors:
- Crispy fries as the base
- Rich, melty cheese for creaminess
- Sweet, deeply caramelized onions
- A savory, slightly tangy sauce that enhances every bite
This combination transforms simple fries into a crave-worthy dish.
Ingredients for In-N-Out Copycat Animal Style Fries
This recipe has two main parts: the fries and toppings, and the signature sauce.
For the Fries and Toppings
- Frozen French fries
- Onions, finely chopped
- Butter
- Neutral oil
- American cheese slices or shredded cheddar cheese
- Salt
For the Animal Style Sauce
- Mayonnaise
- Ketchup
- Sweet relish
- Vinegar
- Sugar
- Optional chili flakes for a mild kick
How to Make In-N-Out Copycat Animal Style Fries
Step 1: Caramelize the Onions
In a pan over low to medium-low heat, melt butter with a small amount of oil. Add the chopped onions and a pinch of salt. Cook slowly, stirring occasionally, until the onions become soft, golden, and deeply caramelized. This step takes time but is essential for achieving the authentic flavor.
Step 2: Prepare the Sauce
In a bowl, combine mayonnaise, ketchup, sweet relish, vinegar, and sugar. Mix until smooth and creamy. Taste and adjust seasoning if needed. If you like a bit of heat, add a pinch of chili flakes.
Step 3: Cook the Fries
Prepare the French fries according to the package instructions. Bake or fry them until they are golden brown and crispy. Crispy fries are important so they can hold the toppings without becoming soggy too quickly.
Step 4: Add the Cheese
Once the fries are cooked, spread them out on a baking tray. Place cheese slices or sprinkle shredded cheese evenly over the hot fries. Put them under the broiler for a few minutes until the cheese is fully melted and bubbly.
Step 5: Assemble the Fries
Top the cheesy fries with the caramelized onions. Drizzle generously with the prepared Animal Style sauce. Serve immediately while hot.
Tips for the Best Animal Style Fries
- Take your time caramelizing the onions; rushing this step will affect the flavor
- Use American cheese for the most authentic texture, or cheddar for a sharper taste
- Serve the fries right away for the best texture and flavor
- Adjust the sauce ingredients to suit your taste preference
Variations and Customizations
You can easily customize In-N-Out Copycat Animal Style Fries to suit your preferences:
- Add extra cheese for a richer dish
- Use homemade fries instead of frozen
- Add grilled mushrooms or jalapeños for extra flavor
- Make it spicier by increasing chili flakes or adding hot sauce
Serving Suggestions
These fries are best enjoyed fresh and hot. They pair perfectly with burgers, sandwiches, or as a stand-alone comfort food. They’re also great for sharing at gatherings or casual meals.
Final Thoughts
In-N-Out Copycat Animal Style Fries are the ultimate indulgent side dish. Crispy fries, melted cheese, sweet onions, and creamy sauce come together to create a dish that’s both nostalgic and satisfying. Making them at home is simple, rewarding, and just as delicious as the original.