Succulent pan-seared chicken thighs smothered in caramelized onions and Gruyere cheese. This French Onion Chicken recipe take the classic soup and turns it into a satisfying keto meal!
Pat the chicken very dry and sprinkle both sides with salt, pepper, and onion powder.
Add the butter to a large oven-proof skillet over medium heat and let melt. Once hot, add the chicken, skin side down, and cook 4 to 5 minutes, until golden. Flip over and cook another 4 minutes. Transfer to a plate.
Add the onions to the pan, and sprinkle with a little more salt and pepper. Reduce the heat to medium low and caramelize the onions slowly until golden, stirring frequently. This may take up to 20 minutes.
In the last 10 minutes of caramelizing, preheat the oven to 375ºF.
Add the thyme to the pan and cook 1 minute more, until fragrant. Add the wine and bring to simmer. Cook until reduced by half, about 2 more minutes.
Nestle the chicken back into the pan and sprinkle the tops with the grated cheese. Bake 20 minutes until melted and bubbly.