Slow Cooker Sour Cream Portobello Ribeye Bites Step-by-step instructions

Before you start

Before starting, cut the ribeye into 1-inch cubes and pat them dry with paper towels. Thickly slice the portobello mushrooms and peel the shallots, leaving them whole.

Measure out the sour cream and have the gravy mix packet ready. Cook the egg noodles just before serving so they stay warm and tender. No other prep is needed—this recipe is designed to be assembled in minutes.

Instructions

Layer and Cook

1. 1Layer the Ingredients
   Place the cubed ribeye bites in the bottom of a 6-quart slow cooker in an even layer. Scatter the thickly sliced portobello mushrooms and the peeled whole shallots over the beef. Dollop the sour cream over the top, then sprinkle the brown gravy mix evenly over everything. Do not stir.
   Look for The slow cooker should be about half full with the ingredients layered in order.
   Tip Keep the sour cream in dollops so it melts into the gravy as it cooks.
2. 2Cover and Cook
   Cover the slow cooker with the lid. Cook on LOW for 6 to 8 hours, or on HIGH for 3 to 4 hours, until the beef is fork-tender. The sauce will darken and become velvety as the sour cream and gravy mix meld with the meat juices. Let it rest for 3 minutes before slicing.
   Look for The aroma of beef and mushrooms will fill the kitchen as it cooks.
   Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
   Tip Avoid lifting the lid during cooking to keep the heat steady.

The slow cooker is filled with layers of raw beef, mushrooms, and shallots, topped with dollops of sour cream and a sprinkle of gravy mix.

As it cooks, the ingredients will release liquid and the sour cream will melt into a rich sauce. By the end of this phase, the beef should be fork-tender and the sauce bubbling gently.

Rest and Prepare

3. 3Check the Beef
   After the minimum cooking time, check the beef by piercing a cube with a fork. It should be very tender and easily pull apart. If not, continue cooking for another 30 minutes and check again. The internal temperature should reach at least 145°F (63°C). Let it rest for 3 minutes before slicing.
   Look for The beef should be fork-tender and the sauce bubbling gently.
   Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
   Tip If the sauce looks thin, leave the lid off for the last 15 minutes to thicken.
4. 4Rest the Meat
   Once the beef is tender, turn off the slow cooker and let the meat rest in the warm sauce for at least 3 minutes before serving. This allows the juices to redistribute and keeps the bites succulent.
   Look for The sauce will settle and slightly thicken during the rest.
   Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
   Tip Resting is short, so the dish stays hot.

After cooking, the beef rests in the warm sauce, allowing the juices to settle. The sauce should be glossy and thick enough to coat a spoon. Meanwhile, the egg noodles are cooked and buttered, ready to receive the hearty topping.

Serve

5. 5Cook the Noodles
   While the beef rests, cook the wide egg noodles according to the package directions in a large pot of salted boiling water until al dente. Drain well and toss with butter to coat.
   Look for The noodles should be tender but still firm to the bite.
   Tip Butter the noodles right after draining to prevent sticking.
6. 6Serve the Stroganoff
   Spoon the warm buttered noodles onto plates or into shallow bowls. Ladle the ribeye bites, mushrooms, shallots, and plenty of the velvety sour cream gravy over the top. Serve immediately.
   Look for The gravy should coat the back of a spoon and the beef should be glistening.
   Tip Serve with a side of crusty bread to soak up every drop of sauce.

The buttered noodles are piled onto plates, and the ribeye bites, mushrooms, shallots, and gravy are ladled generously over the top. The dish should look rich and inviting, with steam rising and the sauce clinging to every component.

Common mistakes

One common mistake is lifting the lid to stir or check frequently, which lets heat escape and extends cooking time. Another is using a lean cut of beef, which can dry out during the long cook.

Be sure to cut the ribeye into even cubes so they cook uniformly. Finally, don't skip the resting time after cooking—it allows the juices to redistribute and keeps the meat succulent.

How to tell it’s done

The dish is done when the beef is fork-tender and easily pulls apart, and the sauce has thickened to a velvety consistency. The internal temperature of the beef should reach at least 145°F (63°C) for food safety, but because of the long slow cook, it will likely be much higher and very tender.

The mushrooms should be soft and glossy, and the shallots should yield easily when pierced. Let the meat rest for at least 3 minutes before serving to keep it juicy.

• Steaks, chops and roasts: 145°F (63°C) in the thickest part, then a 3-minute rest