Pan-Seared Ribeye Steak with Caramelized Onion and Blue Cheese Butter
Perfectly seared ribeye steak topped with a savory caramelized onion and blue cheese butter sauce, ready in under 20 minutes. This american-inspired beef (keto) ready in about 25 minutes pairs (divided) butter, small, thinly sliced yellow onion, crumbled blue cheese for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 400 calories and feeds 2, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart.
Ingredients
- 2 (1.5 inches thick, about 8 oz each) ribeye steaks
- 2 tbsp (divided) butter
- 1 small, thinly sliced yellow onion
- 1/4 cup crumbled blue cheese
- 1/2 tsp garlic powder
- 1/4 tsp salt
- 1/4 tsp black pepper
Instructions
- Step 1: Season both sides of 2 ribeye steaks (1.5 inches thick, about 8 oz each) with 1/4 tsp salt, 1/4 tsp black pepper, and 1/2 tsp garlic powder.
- Step 2: Heat 1 tbsp butter in a cast-iron skillet over medium-high heat until shimmering. Add steaks and sear for 3-4 minutes per side for medium-rare.
- Step 3: Remove steaks and set aside. Add remaining 1 tbsp butter and 1 small thinly sliced yellow onion to the skillet, cooking over medium heat for 10-12 minutes until deeply caramelized. Return steaks to skillet, spooning onion butter over them, then sprinkle with 1/4 cup crumbled blue cheese and let melt for 1 minute.
Frequently asked questions
How long does Pan-Seared Ribeye Steak with Caramelized Onion and Blue Cheese Butter take to make?
Total time is about 25 minutes (10 min prep + 15 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.
How do I store leftover Pan-Seared Ribeye Steak with Caramelized Onion and Blue Cheese Butter?
Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep (divided) butter from drying out.
Can I substitute ingredients in Pan-Seared Ribeye Steak with Caramelized Onion and Blue Cheese Butter?
Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.
How do I scale Pan-Seared Ribeye Steak with Caramelized Onion and Blue Cheese Butter for a different number of people?
The recipe is written for 2 servings. Multiply each ingredient by (your serving target / 2). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.
Is Pan-Seared Ribeye Steak with Caramelized Onion and Blue Cheese Butter keto?
Yes — this recipe is tagged keto based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.
What others are saying
- ★★★★★
Cooked for my partner's birthday—everyone raved about the sweet onions and rich butter. Easy to make for a special occasion.
- ★★★★★
Loved it! Crisp exterior, juicy inside, and that blue cheese butter made it feel fancy without the fuss.
- ★★★★★
The blue cheese butter was a game-changer—perfectly balanced with the caramelized onions! My family kept asking for seconds.
