Slow Cooker Salisbury Chicken Breasts with Mushroom Gravy Step-by-step instructions

Before you start

Before starting, make sure the chicken breasts are thawed if frozen. Slice the onion and mushrooms ahead of time and measure the beef broth. Have the gravy mix packet ready.

No other prep is needed. The slow cooker insert should be clean and ready to use. This recipe is truly dump-and-go, so the only real work is the initial layering.

Instructions

Layer and Cook

1. 1Layer the Chicken and Vegetables
   Place the chicken breasts in the bottom of the slow cooker in a single layer, slightly overlapping if needed. Scatter the sliced onion and mushrooms evenly over the chicken. Sprinkle the brown gravy mix over the top, then pour the beef broth around the edges, trying not to wash the seasoning off the chicken.
   Look for The chicken should be mostly covered by the vegetables and liquid.
   Tip Do not stir after adding the broth; the gravy mix on top will dissolve into the liquid as it cooks.
2. 2Cover and Cook Low and Slow
   Cover the slow cooker with the lid. Cook on LOW for 6 to 7 hours, or on HIGH for 3 to 4 hours, until the chicken is cooked through and tender. Avoid opening the lid during cooking to keep the heat steady.
   Look for The kitchen will smell savory and the gravy will be bubbling gently.
   Safe temperature 165°F (74°C) internal temperature (poultry)
   Tip If cooking on HIGH, check the chicken at 3 hours; cooking times can vary.

At the end of this phase, the slow cooker is filled with raw chicken, onions, mushrooms, and broth. The gravy mix is sprinkled on top.

The ingredients look fresh and the broth is clear. The chicken is not yet cooked, so the slow cooker should be covered and set to cook.

Check and Rest

3. 3Check for Doneness
   After the cooking time, check that the chicken is fully cooked by inserting an instant-read thermometer into the thickest part of a breast. It should read at least 165°F (74°C). The meat should be opaque and no longer pink in the center.
   Look for The thermometer reads 165°F (74°C) or higher.
   Safe temperature 165°F (74°C) internal temperature (poultry)
   Tip If the chicken is not done, return the lid and cook for another 30 minutes on LOW.
4. 4Rest the Chicken
   Turn off the slow cooker and let the chicken rest in the gravy for 5 minutes before serving. This allows the juices to redistribute and keeps the meat moist.
   Look for The chicken is steaming gently in the gravy.
   Tip Resting is short but important; do not skip it.

After the cooking time, the chicken is fully cooked and the gravy has thickened. The onions and mushrooms are soft and have infused the sauce. The chicken should be opaque and reach 165°F (74°C) when checked with a thermometer. Let it rest briefly before serving.

Serve

5. 5Serve the Chicken with Gravy
   Using tongs, transfer each chicken breast to a serving platter or individual plates. Spoon the onion-mushroom gravy generously over the top. Serve hot with mashed potatoes, rice, or egg noodles.
   Look for The gravy is thick and coats the back of a spoon.
   Tip For a thicker gravy, whisk a cornstarch slurry into the juices and simmer for a few minutes on the stovetop.

The chicken is plated and generously topped with the onion-mushroom gravy. The gravy is thick and glossy, clinging to the meat. The dish is ready to serve immediately, with a rich, savory aroma.

Common mistakes

One common mistake is lifting the lid too often during cooking, which lets out heat and extends the cooking time. Another is overcooking the chicken on HIGH, which can make it dry; if using HIGH, check early.

Also, avoid stirring the gravy mix into the broth at the start; letting it sit on top allows it to dissolve gradually and prevents clumping. Finally, don't skip the resting time after cooking—it helps the chicken stay juicy.

How to tell it’s done

The chicken is done when an instant-read thermometer inserted into the thickest part of the breast registers at least 165°F (74°C). The meat should be white and opaque throughout, with no pink remaining.

The gravy will be thickened and the onions and mushrooms will be very soft. If the chicken is not yet to temperature, continue cooking in 30-minute increments until it reaches the safe temperature.

• Poultry: 165°F (74°C) in the thickest part