Tulo

Alfredo Sauce Recipe with Heavy Cream

A pan of creamy white alfredo sauce being stirred with a wooden spoon, flecked with black pepper and grated Parmesan, next to a bowl of fettuccine.
Photo by douglas miller on Pexels

Simmering heavy cream with butter and garlic first lets the sauce reduce and thicken slightly before the cheese goes in, so the Parmesan melts smoothly into a stable emulsion instead of clumping or turning grainy.

Prep
5 min
Cook
15 min
Total
20 min
Servings
4

Ingredients

Servings4
  • 4 tbsp unsalted butter
  • 3 cloves garlic, minced
  • 2 cups heavy cream
  • 1 1/2 cups Parmesan cheese, finely grated
  • 1/2 tsp salt
  • 1/2 tsp black pepper, freshly ground
  • 1 tbsp fresh parsley, chopped, for garnish

Nutrition per serving

Calories
558
Protein
7g
Carbs
5g
Fat
58g

Based on the recipe as written, one serving. Recalculates if you swap an ingredient above. An estimate only, exact values depend on the specific ingredients used.

Need different units or a different yield? Try our Conversion Calculator

Instructions

  1. 1Melt the butter in a large skillet or saucepan over medium heat.
  2. 2Add the minced garlic and cook, stirring constantly, for 30-45 seconds until fragrant but not browned.
  3. 3Pour in the heavy cream and bring to a gentle simmer, stirring occasionally. Let it simmer for 4-5 minutes, until it thickens slightly and coats the back of a spoon.
  4. 4Reduce the heat to low. Add the Parmesan a handful at a time, whisking constantly until each addition melts before adding more.
  5. 5Season with salt and pepper, whisking until the sauce is smooth and glossy.
  6. 6Remove from the heat and toss immediately with hot cooked pasta, adding a splash of reserved pasta water if the sauce needs loosening.
  7. 7Garnish with chopped parsley and extra Parmesan before serving.
How to Thicken Sauce

Tips & variations

  • Grate the Parmesan yourself from a block rather than using pre-shredded cheese; the anti-caking starch coating on bagged shredded cheese keeps it from melting smoothly.
  • Stir in a pinch of freshly grated nutmeg for a subtle warmth that's traditional in many cream sauce variations.
  • For a garlicky, restaurant-style depth, swap half the minced garlic for roasted garlic mashed into a paste.
  • Add cooked, sliced chicken breast or shrimp directly to the sauce for a heartier main course.
  • Whisk in an extra 1/4 cup of pasta water if the sauce tightens up too much after tossing with pasta, since the sauce continues to thicken as it cools.

Storage & reheating

Refrigerate leftover sauce in an airtight container for up to 3 days. Reheat gently in a saucepan over low heat, whisking in a splash of milk or cream to loosen it, since the sauce firms up considerably once chilled. It's not a great candidate for freezing, as the dairy tends to separate and turn grainy when thawed.

Tips from the Tulo kitchen

  • Whisking the Parmesan in off the direct heat, with the pan on low or even removed from the burner between handfuls, gives more control and helps prevent the sauce from breaking.
  • Warming the cream slightly before it hits the hot butter and garlic helps it come to a simmer faster without scorching on the bottom of the pan.

FAQ

Why did my alfredo sauce turn out grainy?

Grainy sauce usually means the cheese was melted over too high a heat or added too quickly. Keep the heat on low once the Parmesan goes in and add it gradually, whisking constantly.

Can I make this alfredo sauce ahead of time?

It's best made fresh, since cream sauces thicken significantly as they cool and can separate on reheating. If making ahead, undercook it slightly and reheat gently over low heat with a splash of cream.

Can I use half-and-half instead of heavy cream?

Half-and-half has less fat and will produce a thinner, less stable sauce that's more prone to separating. If substituting, simmer it longer to reduce and thicken, and expect a lighter texture.

Why is my alfredo sauce too thin?

The cream likely wasn't simmered long enough before the cheese was added. Let it reduce for the full 4-5 minutes, or continue simmering the finished sauce a bit longer, off heat from the cheese-melting step, until it coats a spoon.

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