Bourbon Gravy Portobello Beef Bites: Easy Slow Cooker Dinner Step-by-step instructions

Before you start

Before you begin, cut the beef chuck into 1-inch cubes if not already done. Thickly slice the portobello mushrooms and peel the shallots, cutting any large ones in half.

Measure the gravy and have the butter ready. No searing or browning is needed—just layer everything in the slow cooker. This recipe is truly dump-and-go, so the prep is minimal and the payoff is huge.

Instructions

Layer and Cook

1. 1Layer the Ingredients
   Place the cubed beef chuck in the bottom of the slow cooker. Scatter the thickly sliced portobello mushrooms and the peeled, halved shallots over the beef. Pour the bourbon mushroom gravy evenly over everything, then dot the top with the pats of butter.
   Look for The beef, mushrooms, and shallots are nestled under the gravy, with butter pats melting on top.
   Tip No need to stir—the layers will meld as they cook.
2. 2Cover and Cook
   Cover the slow cooker and cook on low for 6 to 8 hours, until the beef is fork-tender and the gravy is bubbling and thickened. Avoid lifting the lid during cooking to keep the heat steady. Let it rest for 3 minutes before slicing.
   Look for The aroma of bourbon and mushrooms fills the kitchen, and the gravy bubbles gently.
   Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
   Tip If possible, cook on low for the full time; it makes the beef especially tender.

At the end of this phase, the slow cooker is full with raw beef, mushrooms, shallots, gravy, and butter. The butter begins to melt, and the gravy starts to warm.

The kitchen begins to smell savory and slightly sweet from the bourbon. The ingredients are not yet cooked through, but the slow cooker is set to work.

Tenderize and Rest

3. 3Check the Beef
   After 6 hours, test a piece of beef with a fork. It should shred easily and be cooked through to at least 145°F (63°C) for food safety. If it is still tough, continue cooking and check again after 30 minutes.
   Look for The beef is fork-tender, and the gravy has darkened and thickened.
   Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
   Tip The beef will continue to tenderize as it rests.
4. 4Rest the Meat
   Turn off the slow cooker and let the beef rest for at least 3 minutes before serving. This allows the juices to redistribute and keeps the meat moist.
   Look for The gravy settles slightly, and the beef holds its shape.
   Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
   Tip Resting is quick but essential for the most succulent bites.

After 6-8 hours, the beef is fork-tender and the gravy is bubbling and thickened. The mushrooms are soft and glossy, and the shallots are translucent and sweet. The aroma is rich and comforting. The beef has reached a safe internal temperature, and the dish is ready to be served or rested.

Serve

5. 5Serve Over Rice
   Spoon the beef, mushrooms, and shallots over steamed white rice, and ladle extra gravy over the top. Serve hot, straight from the slow cooker.
   Look for Each plate is piled with tender beef, glossy mushrooms, and sweet shallots in rich gravy.
   Tip For a low-carb option, serve over mashed cauliflower or with crusty bread to soak up the gravy.

The finished dish is spooned over rice, with the gravy coating every piece. The beef is tender, the mushrooms are meaty, and the shallots are sweet. The plates are steaming and ready to eat. The slow cooker insert can be brought to the table for family-style serving.

Common mistakes

A common mistake is lifting the lid to check on the food, which lets heat escape and extends cooking time. Trust the slow cooker and keep the lid on until the minimum time is up.

Another mistake is using thin mushroom slices—they can turn mushy; thick slices hold up better. Also, don't skip the resting step; it keeps the beef moist. If the gravy seems thin at the end, let it cook uncovered for 15 minutes to reduce.

How to tell it’s done

The dish is done when the beef is fork-tender, meaning a fork easily pierces and shreds a cube. The internal temperature of the beef should reach at least 145°F (63°C) for food safety.

The gravy will be bubbling and slightly thickened, and the mushrooms will be soft but still hold their shape. Let the beef rest for at least 3 minutes before serving to allow the juices to redistribute.

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