Animal Style Fries (In-N-Out Copycat)

A top view of animal style fries in a basket lined with checkered paper

5 from 3 votes

These In-N-Out Animal Style Fries taste JUST like the "secret menu" favorite. In less time than it takes to go to In-N-Out you can enjoy these popular smothered fries at home!

Prep Time10

Cook Time20

Total Time30

Course: Appetizer, Side Dish

Cuisine: American

Keyword: animal style fries

Servings: servings

Calories: 296kcal

Author: Erica Walker

Ingredients

1 (2-pound) bag frozen French fries
1 tablespoon butter or vegetable oil
1 cup finely chopped white or yellow onion
pinch sea salt
6 slices American cheese (Kraft or Velveeta brand)
½ cup In-N-Out Sauce

In-N-Out Sauce

⅔ cup mayonnaise
⅓ cup ketchup
2 tablespoons sweet relish
1 tablespoon yellow mustard

Instructions

Prepare fries according to package directions. I like them best when made in an air fryer. If baking, you can bake them on a baking sheet lined with parchment paper to be ready for broiling them with cheese later.
While the fries are baking, sauté onions.
Melt butter in a nonstick skillet over medium-high heat. Add the diced onions to the pan and sprinkle with salt. Saute until the onions become golden brown with crisp edges. Remove from heat and set aside.
Prepare the In-N-Out sauce by combining all the sauce ingredients in a small bowl. Set aside until ready to add to the fries.
When fries are heated, place them on a baking sheet lined with parchment paper if you haven't already. Put the fries close together and place the slices of cheese over the top so they cover most of the surface of the fries.
Turn the oven to broil. Place pan under the broiler for 1-2 minutes or until cheese has melted.
Remove the cheese-covered fries from the oven. You can leave them on the baking tray or place them on a serving platter. Add a few scoops of the prepared In-N-Out sauce over the top.
Spoon the cooked onion over the top of the sauce and serve.

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