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Dinner · Part 2 of 3: Instructions

Decadent Crockpot Wild Mushroom and Cognac Tagliatelle Step-by-step instructions

A close-up of glossy tagliatelle pasta coated in a rich, creamy mushroom and truffle sauce.
Prep
Cook
Total
Serves
4

Before you start

Before beginning, ensure all mushrooms are thoroughly cleaned with a damp cloth or soft brush to remove any grit. Slice the mushrooms into uniform pieces to ensure consistent cooking. Finely dice the shallots and mince the garlic cloves.

Have your cognac, beef stock, and butter measured and ready. Since the cooking process is largely hands-off, having your ingredients prepped in advance allows the process to move smoothly once the Crockpot is started.

Ingredients at a glance (11)
  • 1.5 lb mixed cremini, shiitake, and pleurotus oyster mushrooms, cleaned and sliced
  • 2 shallots, finely diced
  • 6 garlic cloves, minced
  • 1/4 cup cognac
  • 2 cups beef stock
  • 4 tbsp butter
  • 8 oz mascarpone cheese
  • 2 tbsp black truffle carpaccio
  • 16 oz egg tagliatelle pasta
  • 1/2 cup shaved Parmigiano-Reggiano, for serving
  • 1 tbsp fresh chives, for serving

Instructions

Layering the base

  1. Prepare and combine slow-cooker base
    Place the cleaned and sliced mixed mushrooms into the Crockpot. Add the diced shallots, minced garlic, cognac, beef stock, and butter. Ensure all ingredients are evenly distributed to allow for uniform cooking during the slow-cook cycle.
    Look for Ingredients should be well-mixed and ready for the slow-cooking process.
    Tip Ensure the mushrooms are sliced into uniform pieces so they cook evenly throughout the process.

The Crockpot should be filled with the mushroom mixture, ensuring the butter is distributed evenly among the mushrooms, aromatics, and liquids. The ingredients should be moist but not completely submerged at the start, as the mushrooms will release significant liquid during the cooking process.

Slow-cooking the mushrooms

  1. Slow-cook the mushroom mixture
    Cover the Crockpot with the lid and set to cook on LOW for 3 hours. This gentle, low-temperature cooking allows the mushrooms to release their juices and reach a safe temperature of at least 145°F (63°C) that defines this rich base.
    Look for The mushrooms should be tender and have significantly reduced in volume, releasing a rich aroma.
    Safe temperature 145°F (63°C) internal temperature (shellfish)
    Tip Avoid lifting the lid frequently during this stage to maintain the steady internal temperature of the Crockpot.

The kitchen should be filled with the rich, savory aroma of sautéed mushrooms, garlic, and cognac. The mushrooms should be significantly softer and darker in color, having absorbed the beef stock and cognac, resulting in a concentrated and deeply flavorful liquid base reaching over 145°F (63°C).

Incorporating finishing ingredients

  1. Finish with mascarpone, truffle, and pasta
    After 3 hours, stir in the mascarpone cheese and black truffle carpaccio until fully incorporated into the sauce. Add the egg tagliatelle and cook thoroughly until the egg pasta reaches an internal temperature of 160°F (71°C) with an al dente texture. Serve immediately after garnishing with freshly shaved Parmigiano-Reggiano and chopped chives.
    Look for The sauce should be glossy and coating the pasta perfectly, with the truffle aroma prominent.
    Safe temperature 160°F (71°C) internal temperature (egg dishes)
    Tip If the sauce appears too thick, add a small splash of warm water or additional stock to reach the desired consistency.

The sauce should look glossy and smooth once the mascarpone is melted. The pasta should be tender, reaching 160°F (71°C), and perfectly coated in the truffle-infused cream sauce. The final dish should be aromatic, with the earthy scent of truffles and the warmth of the cognac clearly present.

Common mistakes

A common mistake is overcrowding the Crockpot, which can lead to uneven cooking and mushrooms that steam rather than brown. Ensure you have enough space for the mushrooms to release their moisture.

Another error is adding the delicate mascarpone and truffle too early; these ingredients should only be stirred in during the final stage to preserve the truffle's aroma and the mascarpone's creamy texture.

Finally, do not overcook the pasta, as it will continue to absorb liquid and soften even after the heat is turned off.

How to tell it’s done

The dish is considered done when the mushrooms are completely tender, having cooked through to at least 145°F (63°C), and the sauce has reduced slightly to a velvety consistency.

The egg tagliatelle should be cooked to an al dente bite, ensuring that the pasta mixture safely reaches an internal temperature of 160°F (71°C) before taking it off the heat and plating.

  • Shellfish: 145°F (63°C) in the thickest part
  • Egg dishes: 160°F (71°C) in the thickest part

Coming up in Part 3: common questions

  • Can dried mushrooms be used in this recipe?
  • Why is it important to use egg tagliatelle?
  • How can the sauce be thinned if it becomes too thick?

Also in Part 3: variations (Herbed Mushroom Pasta, Spinach and Mushroom Pasta), 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)