Slow Cooker Mushroom Stroganoff

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Of course! This Slow Cooker Mushroom Stroganoff is the ultimate comfort food. It’s incredibly creamy, packed with umami flavor, and so easy to make. It’s a perfect vegetarian meal that feels indulgent and satisfying.

The Essence of the Dish

Imagine tender, meaty mushrooms and savory onions slow-cooked in a rich, flavorful broth, then finished with sour cream and fresh herbs, all served over a bed of egg noodles. It’s hands-off, comforting, and perfect for a busy day.

Slow Cooker Mushroom Stroganoff

Prep Time: 15 minutes
Cook Time: 4-6 hours on Low (or 2-3 on High)
Total Time: 4-6 hours (mostly hands-off)
Serves: 4-6

Ingredients

· For the Slow Cooker:
· 2 lbs (900g) mixed mushrooms, sliced (cremini, white button, shiitake, or portobello are great)
· 1 large yellow onion, thinly sliced
· 4 cloves garlic, minced
· 1 cup vegetable broth
· 2 tablespoons tomato paste
· 2 tablespoons soy sauce (or tamari for gluten-free)
· 1 tablespoon Dijon mustard
· 1 teaspoon dried thyme
· ½ teaspoon smoked paprika (optional, for depth)
· ¼ cup dry white wine (like Sauvignon Blanc) or additional broth
· Salt and freshly ground black pepper to taste
· For the Roux (To Thicken):
· ¼ cup (½ stick / 4 tbsp) unsalted butter
· ¼ cup all-purpose flour
· To Finish & Serve:
· ⅔ cup sour cream, at room temperature (or full-fat Greek yogurt)
· 1 tablespoon fresh parsley, chopped (plus more for garnish)
· 12 oz (340g) wide egg noodles, for serving

Instructions

Step 1: Combine in the Slow Cooker

  1. Add the sliced mushrooms, onion, garlic, vegetable broth, tomato paste, soy sauce, Dijon mustard, dried thyme, and smoked paprika (if using) to the slow cooker insert. Stir well to combine and ensure the tomato paste is dissolved.
  2. Season with a good pinch of salt and pepper.

Step 2: Slow Cook

  1. Cover and cook on LOW for 5-6 hours or on HIGH for 2-3 hours. The mushrooms should be very tender and the flavors well-melded.

Step 3: Cook the Egg Noodles

  1. About 15-20 minutes before the stroganoff is finished, cook the egg noodles according to package directions in a large pot of salted water. Drain and set aside. (Tossing them with a little butter will prevent sticking.)

Step 4: Thicken the Sauce

  1. In a medium saucepan over medium heat, melt the ¼ cup of butter.
  2. Whisk in the ¼ cup of flour and cook, whisking constantly, for about 1-2 minutes until it forms a smooth paste (a “roux”) and smells slightly nutty.
  3. Carefully ladle about 1-2 cups of the hot liquid from the slow cooker into the roux, whisking vigorously until the mixture is completely smooth.
  4. Pour this thickened mixture back into the slow cooker and stir to combine. This will prevent lumps!

Step 5: Finish the Dish

  1. Turn the slow cooker off (or to the “Warm” setting). This step is crucial to prevent the sour cream from curdling.
  2. Stir in the room-temperature sour cream and fresh parsley until fully incorporated.
  3. Taste and adjust seasoning with more salt and pepper if needed.

Step 6: Serve

  1. Serve the creamy mushroom stroganoff immediately over the cooked egg noodles.
  2. Garnish with extra fresh parsley and an extra dollop of sour cream if desired.

Serving Suggestions

· The Classic: Over egg noodles is the traditional and best way.
· Other Carbs: This is also fantastic over mashed potatoes, rice, or polenta.
· For a Low-Carb Option: Serve over cauliflower mash or zucchini noodles.
· Add a Side: A simple green salad or steamed green beans like haricots verts make a perfect, fresh accompaniment.

Chef’s Tips & Variations

· Mushroom Variety is Key: Using a mix of different mushrooms (cremini, shiitake, oyster) gives the best, most complex “meaty” flavor.
· Don’t Skip the Roux: This is the best method for getting a rich, gravy-like consistency without having to dirty another pan for a cornstarch slurry. It adds a wonderful flavor, too.
· Prevent Curdling: Always take the slow cooker off the direct heat source (turn it off) and use room-temperature sour cream. Adding it to a boiling sauce will cause it to separate.
· Make it Vegan:
· Use olive oil or vegan butter for the roux.
· Substitute the sour cream with ¾ cup of plain, unsweetened vegan cashew or oat cream. Stir in 1 tablespoon of lemon juice at the end for tang.
· Add Protein: For a non-vegetarian version, you can brown 1 lb of ground beef, sausage, or stewing beef cubes and add it at the beginning with the mushrooms.
· Deglaze for Depth: If you have time, sauté the onions and mushrooms in a skillet with a little oil until browned before adding them to the slow cooker. This caramelization adds a huge flavor boost.

Enjoy your effortless, cozy, and delicious meal

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