A recent trend on social media has highlighted a way for McDonald’s customers to approximate the taste of In-N-Out’s Animal Style burger using standard menu items. The method involves combining a McDonald’s cheeseburger with specific condiments and toppings to replicate the distinctive flavor profile of the California chain’s popular offering.

In-N-Out’s Animal Style burger is known for its mustard-cooked beef patty, pickles, grilled onions, and a special sauce. The McDonald’s hack reportedly uses existing ingredients such as mustard, grilled onions from the breakfast menu, pickles, and a mix of ketchup and mayonnaise to approximate the special sauce. This approach offers an option for those who do not have access to In-N-Out locations, which are primarily found on the West Coast and in select other states.

While McDonald’s has not officially endorsed the combination, the hack has gained attention among fast food enthusiasts who share it as a cost-effective and convenient alternative. It also reflects a broader interest in customizing fast food orders to approximate regional or niche favorites.

The popularity of such hacks underscores the continued appeal of In-N-Out’s menu beyond its physical footprint. It also illustrates how consumers are engaging with fast food brands in new ways, adapting offerings to suit their tastes or circumstances.

This development comes amid a competitive fast food landscape where menu customization and regional specialties play a role in customer loyalty and brand differentiation. Whether McDonald’s will respond by incorporating similar items on its menu remains to be seen.

Editorial Transparency. A first draft of this story was produced with AI-assisted writing tools, then reviewed for accuracy and tone by the named editor before publication. More on our process: Editorial Policy.