Instructions
Cook the fries:
Bake or air fry your French fries until crispy and golden. Keep warm.
Caramelize the onions:
Heat butter and olive oil in a skillet over medium-low heat.
Add onions and a pinch of salt, cooking slowly for 15–20 minutes until deep golden brown.
Add a splash of water if onions start to stick.
Make the spread:
In a small bowl, mix mayonnaise, ketchup, relish, vinegar, and sugar until smooth. Set aside.
Assemble the fries:
Lay hot fries on a plate, top with cheese slices so they melt.
Spoon over caramelized onions and drizzle generously with the spread.
Serve immediately:
Enjoy while everything is warm and gooey.
ADVERTISEMENT
