Ingredients:

  • 1/2 cup (1 stick) Unsalted Butter, cut into 4 pieces
  • 1 large clove Garlic, finely minced (optional)
  • 2 cups Heavy Cream (35% Fat), room temperature
  • 6 oz Freshly Grated Parmigiano-Reggiano
  • Fine Sea Salt, to taste
  • 1/4 tsp White Pepper
  • 1 tbsp Fresh Parsley, chopped (for garnish, optional)

Instructions:

  1. Prep the Cheese: Ensure the Parmigiano-Reggiano is grated very finely using a Microplane or the smallest side of a box grater. Set aside.
  2. Melt the Butter: Place a medium-sized, heavy-bottomed saucepan over low heat. Melt the butter slowly until just liquid, ensuring it does not brown.
  3. Bloom the Garlic (Optional): If using, add the minced garlic and sauté gently for 30–60 seconds, until fragrant. Do not allow the garlic to burn.
  4. Warm the Cream: Pour the heavy cream into the saucepan. Increase the heat slightly to medium-low. Heat the cream until small bubbles just begin to form around the edges (about 4–5 minutes). Crucial: Do not let the cream come to a rapid boil, as high heat risks separation.
  5. Remove from Heat: Once the cream is hot, remove the pan entirely from the hob. This allows the temperature to drop slightly before adding the cheese, preventing clumping.
  6. Incorporate the Cheese: Add the grated Parmigiano-Reggiano gradually, about 1/3 at a time, whisking continuously and vigorously until fully melted and smooth before adding the next batch. Constant movement is key to creating a stable emulsion.
  7. Return to Low Heat (If Needed): If the sauce becomes too thick or cools too quickly, return it briefly to the absolute lowest setting on the hob for about 30 seconds, whisking constantly, until it reaches a thick, glossy consistency that coats the back of a spoon.
  8. Season: Stir in the salt and white pepper. Taste and adjust seasoning cautiously, as Parmesan is naturally salty.
  9. Toss Immediately: Immediately toss the finished sauce with hot, freshly drained pasta (Fettuccine is traditional). Use a tablespoon or two of reserved starchy pasta water if needed to loosen the Alfredo sauce and help bind the emulsion.