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Dinner · Part 2 of 3: Instructions

Slow-Cooker Brown Sugar and Dijon Pork Loin with Apples Step-by-step instructions

A succulent slow-cooked pork loin topped with a caramelized brown sugar and mustard crust, served with tender baked apples.
Prep
Cook
Total
Serves
6
Includes 10 min resting

Before you start

Before beginning, ensure the slow cooker insert is clean and dry. Prepare the ingredients by quartering the Gala apples and slicing the onion into uniform, medium-thick strips.

Take the pork loin out of the refrigerator about 20 minutes before seasoning to take the chill off, which helps with more even cooking. Have a meat thermometer ready to verify the internal temperature of the pork, as this is the most reliable way to ensure the roast is perfectly cooked and safe to eat.

Ingredients at a glance (6)
  • 4 lb boneless pork loin
  • 4 Gala apples, quartered
  • 1 onion, sliced
  • 1/2 cup dark brown sugar
  • 1/4 cup whole-grain Dijon mustard
  • 1 tsp smoked paprika

Instructions

Preparing the base

  1. Layering the base
    Place the quartered Gala apples and sliced onion at the bottom of the ceramic slow cooker insert to create a flavorful bed for the meat.
    Look for The bottom of the cooker is evenly covered with the fruit and vegetable layers.
    Tip Ensure the pieces are cut to a uniform size to cook evenly.

The base is ready when the apples and onions are neatly arranged at the bottom of the slow cooker. The aroma of fresh fruit and onions should be apparent. Ensure the layer is fairly even so the pork loin sits level, allowing for consistent cooking across the surface area of the meat during the long simmer.

Seasoning and starting

  1. Seasoning the roast
    Place the boneless pork loin on top of the apple and onion bed. Rub the top of the loin thoroughly with the dark brown sugar, whole-grain Dijon mustard, and smoked paprika until well coated.
    Look for The pork loin is evenly coated with the mustard mixture and sugar.
    Tip Use a silicone spatula or clean hands to ensure the mustard and sugar paste covers the entire top surface.

The pork loin should be coated in a generous layer of the brown sugar, Dijon, and paprika mixture. The texture of the crust should be thick and slightly tacky.

Once the lid is placed on the cooker, the slow cooking process begins, and the ingredients will start to release their moisture, building the foundation for the sauce.

Final cooking and serving

  1. Slow cooking and serving
    Cover the slow cooker and cook on low for 5.5 hours. The pork is done when it reaches an internal temperature of 145°F (63°C). Remove the pork to a cutting board, let it rest for 10 minutes before slicing, and serve with the warm baked apples and juices.
    Look for The pork is tender, cooked through, and the apples have softened significantly.
    Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
    Tip Spoon the accumulated juices over the sliced meat before serving for extra flavor.

At the end of the cooking time, the pork should be tender and easily pierced with a fork. The apples should be soft and translucent, having absorbed the savory juices from the pork and the tangy mustard. The sauce at the bottom of the cooker should be rich, fragrant, and ready to be spooned over the sliced meat.

Common mistakes

A common mistake is overcooking the pork, which can turn it dry even in a slow cooker. Always monitor the time closely and check the internal temperature once the timer nears completion.

Another error is failing to let the meat rest after cooking; skipping this essential step causes the juices to run out immediately upon slicing, resulting in a drier roast. Finally, ensure the pork is not overcrowded in the cooker, as adequate space allows for proper heat circulation and even cooking.

How to tell it’s done

The pork is perfectly done when it reaches an internal temperature of 145°F (63°C) as measured by a digital thermometer inserted into the thickest part of the roast. At this temperature, the meat will be tender and succulent.

After reaching this temperature, remove the roast from the heat and allow it to rest for at least 10 minutes on a cutting board, which allows the juices to redistribute throughout the meat, ensuring every slice remains moist and flavorful.

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

Coming up in Part 3: common questions

  • Can a pork tenderloin be used instead of a pork loin?
  • How can the sauce be thickened if it is too thin?
  • Is it necessary to peel the apples?

Also in Part 3: variations (Savory Herb Infusion, Spicy Mustard Kick), storage and make-ahead, and the printable recipe card.

Up next · Part 3 of 3

2 variations · storage & make-ahead · 3 answers · printable card

Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)