Ribeye Steak with Caramelized Onions and Mashed Potatoes

- In a large skillet, melt the butter and olive oil over medium heat.

- Add the sliced onions, sugar, salt, and black pepper. Cook, stirring occasionally, until the onions are caramelized and golden brown, about 25-30 minutes.

- Add the beef broth and fresh thyme (if using), and cook for an additional 5 minutes until the liquid is mostly absorbed. Remove from heat and set aside.

Step 3: Cook the Ribeye Steaks

- Preheat your grill or a large skillet over high heat.

- Rub the ribeye steaks with olive oil and season generously with salt and pepper.

- Place the steaks on the hot grill or skillet and cook for 4-5 minutes per side for medium-rare, or until your desired level of doneness.

- For the last minute of cooking, add the butter, minced garlic, and rosemary sprigs to the pan and baste the steaks with the melted butter.

- Remove the steaks from the heat and let them rest for 5 minutes before serving.

Step 4: Serve

- Arrange a generous scoop of mashed