This onion wrapped smashburger is the BEST In-N-Out copycat burger you can make at home! 🧅🔥 Cooked hot and fast on the Pit Boss griddle, this low-carb burger hack brings all the flavors of an animal-style In-N-Out burger—grilled onions, melty cheese, secret sauce, and a perfect smash. If you’re searching for griddle recipes, viral burger trends, or high-protein bunless burger ideas, this one needs to be on your menu ASAP. Smashburger #GriddleCooking #OnionWrapped #NoBunBurger #BurgerRecipe #pi