Go Back
A black plate with creamy mashed potatoes topped with rich beef stroganoff, garnished with fresh parsley. The dish is served on a red and white checkered cloth.

Beef Stroganoff Over Thyme & Garlic Mashed Potatoes

No ratings yet
Prep Time 20 minutes
Cook Time 1 hour
Yield 4 Servings
Print

Ingredients

Stroganoff

Beef Marinade

  • 750 g Flank Steak , cut into strips
  • 4 tbsp Worcestershire
  • 2 tbsp Soy Sauce
  • 1 tbsp Corn Starch

Sauce

  • 3 large Onions, cut into quarters, then thin strips
  • 6 cloves Garlic, grated
  • 120 ml White Wine
  • 60 ml Worcestershire
  • 1 L Beef Stock
  • 3 sprigs Thyme
  • Salt
  • Pepper
  • Parsley
  • 200 ml Sour Cream
  • 400 g Egg Noodles

Mashed Potatoes

Infused Cream & Garlic Butter

  • 400 ml Cream
  • 200 g Butter
  • 1 handful Thyme Sprigs
  • 6 cloves Garlic, smashed

Potato Mash

  • 6 large Russet or Yukon Gold Potatoes
  • 500 ml Chicken Stock
  • 500 ml Water
  • Salt, to taste

Instructions

Beef Stroganoff

    Marinate the Beef

    • In a bowl, combine the thinly sliced flank steak with a generous splash of Worcestershire sauce, a touch of soy sauce, and a bit of cornstarch.
      750 g Flank Steak
      4 tbsp Worcestershire
      2 tbsp Soy Sauce
      1 tbsp Corn Starch
    • Let it sit while you prepare the rest of the ingredients.

    Prepare the Vegetables

    • Cut the onion in half, then in half again to make quarters. Slice each quarter into thin strips.
      3 large Onions
    • Grate the garlic cloves using a micro-plane. This gives you a fine, almost paste-like texture that melts right into the sauce and adds depth without overpowering.
      6 cloves Garlic

    Sear the Beef

    • Heat a Dutch oven over medium-high heat with a little neutral oil.
    • Working in batches, sear the marinated beef strips until they’re browned and caramelized on the outside.
    • Once done, transfer the beef to a plate and set aside, making sure to keep any juices.

    Cook the Onions & Garlic

    • Lower the heat to medium and add your sliced onions to the same pot. Sprinkle with salt to help draw out moisture, stir.
    • Let them cook down slowly until they’re soft, translucent, and just starting to turn golden.
    • Add the grated garlic and stir gently, letting it cook for another minute or two until fragrant.

    Deglaze & Build the Sauce

    • Pour in the white wine and a splash of Worcestershire sauce to deglaze the pot.
      120 ml White Wine
      60 ml Worcestershire
    • Use a wooden spoon to scrape up all those delicious browned bits stuck to the bottom.
    • Add the thyme and stir everything together.

    Simmer the Base

    • Add the beef stock and bring the mixture to a gentle simmer. Add Thyme.
      1 L Beef Stock
      3 sprigs Thyme
    • Let it bubble away for about 20 minutes, uncovered, so the flavors can concentrate and the sauce begins to thicken slightly.
    • Return the Beef
    • Add the seared beef and any juices back into the pot.
    • Stir in a splash of apple cider vinegar—this helps tenderize the meat and adds a subtle brightness to balance the richness.
    • Simmer for another 25 minutes, uncovered, until the beef is tender and the sauce is luscious.
    • Finish with Sour Cream
    • Turn the heat to low and stir in the sour cream.
      200 ml Sour Cream
    • Let it gently simmer until the sauce is creamy and just the right consistency.
    • Taste and season with salt and freshly ground black pepper.
      Salt
      Pepper

    Serve

    • Spoon the Stroganoff over egg noodles and top with a sprinkle of fresh parsley if you like, and serve warm.
      400 g Egg Noodles
      Parsley

    Mashed Potatoes

      Infused Cream & Garlic Butter

      • In a small saucepan, combine the cream and thyme sprigs, bring to a simmer and place the lid on. Allow to simmer on low for 20 minutes.
        400 ml Cream
        1 handful Thyme Sprigs
      • Turn off the heat and allow to rest for 15 minutes.
      • Using a small sieve, strain the thyme and reserve the infused cream.
      • In a separate saucepan, melt butter and bring to a very low simmer.
        200 g Butter
      • Peel the garlic cloves and smash with the side of a knife blade. Add the garlic cloves to the butter. Allow to simmer on low for 20 minutes.
        6 cloves Garlic
      • Turn off the heat and allow to rest for 15 minutes.
      • Using a small sieve, strain the garlic cloves and reserve the infused butter.

      Potato Mash

      • Peel and chop the potatoes into small, evenly sized chunks to ensure they cook quickly and evenly.
        6 large Russet or Yukon Gold Potatoes
      • Add the potatoes to a large pot and cover with a 1:1 mixture of rich chicken stock and water. Place the lid on and bring to a boil.
        500 ml Chicken Stock
        500 ml Water
      • Once boiling, shift the lid slightly to allow steam to escape. Continue boiling until the potatoes are very tender and easily pierced with a fork.
      • Strain the potatoes, reserving the chicken stock mixture for possible use in adjusting texture later.
      • Using a potato ricer on the smallest setting, process the potatoes back into the pot for a smooth, lump-free texture.
      • Return the pot to very low heat. Slowly stir in the thyme-infused cream, followed by garlic-infused butter, adding a little at a time and stirring thoroughly after each addition.
      • Add salt to taste and a touch more butter if needed, adjusting until the texture is silky and the flavor is balanced.
        Salt
      • Spoon the mashed potatoes onto plates or into shallow bowls. Top generously with beef stroganoff and garnish with fresh parsley if desired.