Craving a dinner that feels fancy but won’t demand a second mortgage or a culinary PhD? This mushroom Dijon pork tenderloin made in the slow cooker is your new weekday hero.
It gives you a silky, tangy sauce and meat so tender it practically asks for a fork. But here’s the catch!
You still get to look like you planned this all along while the slow cooker does the heavy lifting.
Contents
Equipment: Must-haves
- Slow cooker (crockpot)
- Skillet (heavy or cast-iron)
- Cutting board
- Chef’s knife
- Tongs
- Wooden spoon
- Measuring spoons
- Mixing bowl
Equipment: Nice-to-haves
- Meat thermometer
- Slotted spoon
- Serving platter
- Small whisk
Ingredients
- 1 pork tenderloin (about 1 to 1.25 lb), trimmed of silver skin
- 8 oz mushroom, sliced (cremini or button)
- 1 small onion, thinly sliced
- 2 clove garlic, minced
- 1/2 cup chicken broth
- 2 tbsp Dijon mustard
- 1 tbsp Worcestershire sauce
- 1 tbsp olive oil
- 2 tbsp butter
- 1 tsp fresh thyme leaves (or 1/2 tsp dried thyme)
- Salt to taste
- Black pepper to taste
- 1 tbsp cornstarch (optional, for thickening)
- 2 tbsp water (for cornstarch slurry, optional)
- 1 tbsp heavy cream (optional, for richer sauce)
- 1 tbsp fresh parsley, chopped (for garnish, optional)
Instructions
- Pat the pork tenderloin dry and season it with salt and black pepper.
- Heat the skillet over medium-high heat and add olive oil and butter until shimmering.
- Sear the pork on all sides until browned to build flavor, using tongs to turn it.
- Transfer the seared pork into the slow cooker and set it aside.
- In the same skillet, add sliced mushroom and onion and sauté until they start to brown, scraping up browned bits with the wooden spoon.
- Add minced garlic and fresh thyme to the skillet and cook until fragrant, stirring briefly.
- Pour chicken broth into the skillet to deglaze, scraping the pan to loosen flavorful bits.
- Stir Dijon mustard and Worcestershire sauce into the skillet liquid in the mixing bowl if you prefer mixing first, then combine everything and pour the sauce over the pork in the slow cooker.
- Cover and cook on low until the pork is tender and an inserted meat thermometer reads the safe temperature, while the aroma tempts everyone in the house.
- When the pork is done, remove it from the slow cooker and let it rest on the cutting board for a few minutes to lock in juices.
- If you want a thicker sauce, skim some of the cooking liquid into the skillet and whisk in a cornstarch slurry until it bubbles and thickens, then stir in heavy cream if using.
- Slice the pork tenderloin against the grain on the cutting board and arrange the slices on the serving platter.
- Spoon the mushroom-Dijon sauce over the sliced pork and garnish with chopped parsley using the slotted spoon if desired.
- Serve with mashed potatoes, rice, or crusty bread to soak up every last drop and enjoy your triumph over Tuesday night.
What Else You Should Know
Searing the pork first is optional but recommended; it adds a nutty, caramelized flavor that the slow cooker can’t create on its own. If you’re short on time, skip the sear and add a splash more Dijon for depth—still delicious, just a little less showy.
Use a meat thermometer to check doneness; pork is safe at the recommended temp and you avoid guesswork. For a gluten-free option, replace cornstarch with arrowroot or skip thickener and simmer the sauce on the stovetop to reduce.
Leftovers reheat well; store sliced pork and sauce separately and warm gently to keep the meat tender. Variation idea: swap thyme for rosemary or add a splash of white wine to the deglaze for extra brightness.
Serving suggestion: pile slices over creamy mashed potato or wide egg noodle and invite everyone to fight over the best piece—politely, of course.
