My grandpa taught me this steakhouse secret. Using 3 ingredients inside these sealed bundles creates a creamy rich bite that tastes like a luxury dinner.

My grandpa was a cattle man who believed a good steak didn’t need much—just the right cut, the right heat, and a little something creamy to melt over the top. This slow cooker 3-ingredient blue cheese steak foil packet recipe comes straight from those suppers on the farm, when he’d tuck steaks and blue cheese into tight little bundles and let them turn rich and velvety in low, steady heat. It tastes like a fancy steakhouse dinner, but it’s made with only three ingredients and a slow cooker, so anyone can pull it off on a busy weeknight or a quiet Sunday afternoon.

These blue cheese steak packets are rich and saucy, so they shine next to simple sides: a baked potato or buttered mashed potatoes to soak up the drippings, steamed green beans or broccoli, or a crisp green salad with a light vinaigrette. Warm dinner rolls or crusty bread are perfect for sopping up the creamy blue cheese juices. For a true Midwestern plate, add corn on the cob or buttered egg noodles and a jar of refrigerator pickles on the side.

Servings: 4

2 pounds beef steak, cut into 4 thick portions (sirloin, ribeye, or chuck steaks about 1 to 1 1/2 inches thick)

Prepare the foil packets: Tear off 4 large sheets of heavy-duty aluminum foil, each about 12 to 14 inches long. Lightly crimp up the edges of each sheet so the juices will stay inside once folded.

Portion the steaks: Pat the steak pieces dry with paper towels. If using a larger roast-style cut, slice it into 4 even steaks so they cook at the same rate. Place one steak in the center of each foil sheet.

Top with butter and blue cheese: Place 1 tablespoon of salted butter on top of each steak. Sprinkle each steak generously with crumbled blue cheese, dividing about 4 to 5 tablespoons per packet. Keep a little extra blue cheese aside if you’d like to add a pinch at the very end.

Seal the foil bundles: Fold the long sides of the foil up and over the steak, then fold the edges together tightly to seal. Fold in the short ends several times to make a snug, leak-resistant packet. The goal is to keep the steam and cheese inside so it melts into a creamy sauce around the meat.

Arrange in the slow cooker: Set the foil packets seam-side up in a single layer in the bottom of a 5- to 6-quart slow cooker. It’s fine if they fit snugly, but try not to stack them directly on top of each other so they cook evenly.

Cook low and slow: Cover the slow cooker with the lid. Cook on LOW for 3 1/2 to 4 1/2 hours, or until the steaks reach your preferred doneness. Start checking around 3 1/2 hours by carefully opening one packet and using an instant-read thermometer inserted into the thickest part of the steak (145°F for medium, 160°F for medium-well). Reseal and continue cooking if needed.

Rest the steaks in the packets: Once done, turn off the slow cooker and let the packets sit, still sealed, for about 5 to 10 minutes. This resting time lets the juices settle and the blue cheese finish melting into a rich, creamy sauce around the meat.

Serve with buttery drizzle: Carefully open each foil packet—watch for hot steam—and transfer the steak and its blue cheese sauce to plates, or simply serve right in the opened foil for a rustic presentation. Melt the remaining butter and drizzle a little over the top of each steak, along with any extra blue cheese you reserved if you like a stronger flavor. Spoon the creamy juices over each serving and enjoy immediately.

Cut choice and texture: For a more tender, steakhouse-style bite, use well-marbled cuts like ribeye or top sirloin and aim for the shorter cooking time. For a pot-roast style, fall-apart texture, choose chuck or round steaks and cook a bit longer until very tender. Blue cheese options: Milder blue cheeses (like Danish blue or Gorgonzola dolce) give a gentle, creamy flavor, while stronger varieties (like Roquefort or a sharp domestic blue) make the sauce more assertive. If cooking for mixed tastes, you can use a milder blue in the packets and offer extra crumbles at the table. Butter notes: Salted butter adds enough seasoning that most folks won’t miss extra salt, but you can sprinkle a pinch of salt and black pepper on the steaks before adding the butter and cheese if you prefer. Herb twist (still 3 ingredients in spirit): If you keep herb butter on hand, you can use that in place of plain butter for a subtle garlic or herb note without complicating the recipe. Serving ideas: Serve the steaks sliced over mashed potatoes, egg noodles, or toasted bread to catch every bit of the blue cheese sauce. Leftovers reheat well when gently warmed in the foil in a low oven. Food safety tips: Always keep raw steak refrigerated until you’re ready to assemble the foil packets. Use clean hands and utensils when handling the meat. Make sure the slow cooker is on the LOW or HIGH setting while cooking—never on the “warm” setting for raw meat. To be food-safe, cook beef to at least 145°F and let it rest before eating; if you prefer more doneness, cook to 160°F. Open the foil packets away from your face and hands, as hot steam can cause burns. Refrigerate leftovers within 2 hours of cooking and store in a shallow container; reheat to at least 165°F before serving.