In-N-Out Copycat Animal Style Fries 

These Copycat Animal Style Fries bring the beloved fast-food indulgence right into your kitchen. Crispy golden fries form the base, layered with melted cheddar or American cheese, sweet caramelized onions, and a luscious tangy “special sauce” made from mayonnaise, ketchup, mustard, relish, and a splash of vinegar. Perfect as a game-day snack, a side for burgers, or a treat-yourself meal, this recipe balances crunch, creaminess, and savory depth in every bite. The caramelized onions add a rich sweetness, while the sauce delivers a zesty punch—making these fries an unforgettable comfort food experience.

Ingredients

• ½ bag (about 200 g) frozen fries
  
  

• 4 slices cheddar cheese or American cheese
  
  

• 2 medium onions, diced
  
  

• 2 tbsp butter
  
  

• 1 tbsp neutral oil
  
  

• ½ tsp salt
  
  

• Special Sauce:
  
  

  • 3 tbsp mayonnaise
    
    

  • 1 ½ tbsp ketchup
    
    

  • 1 tsp yellow mustard
    
    

  • 1 tbsp sweet pickle relish
    
    

  • ½ tsp white vinegar
    
    

Directions

1. Bake or air-fry frozen fries according to package instructions until golden and crispy.
   
   

2. In a small bowl, mix mayonnaise, ketchup, mustard, relish, and vinegar until well combined. Refrigerate until needed.
   
   

3. In a skillet, heat butter and oil over medium heat. Add diced onions and salt; cook slowly, stirring often, until onions turn deep golden brown and caramelized, about 15 minutes.
   
   

4. Place cooked fries on a serving plate. Lay cheese slices on top so they melt from the residual heat.
   
   

5. Spoon caramelized onions over cheese, then drizzle generously with the chilled special sauce. Serve immediately.
   
   

Nutrients (per serving, serves 2)

• Calories: 540 kcal
  
  

• Carbohydrates: 50 g
  
  

• Protein: 10 g
  
  

• Fat: 34 g
  
  

• Saturated Fat: 13 g
  
  

• Cholesterol: 55 mg
  
  

• Sodium: 930 mg
  
  

• Fiber: 4 g
  
  

• Sugar: 9 g