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Easy 15-Minute Homemade Alfredo Sauce

A fork lifting fettuccine noodles coated in creamy homemade alfredo sauce, topped with grated Parmesan cheese.

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Make rich, creamy homemade Alfredo sauce from scratch in just 15 minutes using simple ingredients like butter, heavy cream, and Parmesan cheese. This recipe delivers a classic Italian sauce perfect for any pasta night.

Ingredients

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  • 6 tbsp unsalted butter
  • 1 cup heavy cream
  • 1 cup freshly grated Parmesan cheese
  • 1/2 tsp salt
  • 1/4 tsp black pepper
  • Optional: 2 cloves garlic, minced

Instructions

  1. Melt the butter in a medium saucepan over medium heat. If using garlic, add the minced garlic and cook for 1 minute until fragrant. Do not let the garlic brown.
  2. Pour in the heavy cream and bring the mixture to a gentle simmer, stirring occasionally. Reduce the heat to low.
  3. Gradually whisk in the grated Parmesan cheese, a little at a time, until the cheese is fully melted and the sauce is smooth.
  4. Season the sauce with salt and pepper. Taste and adjust seasoning as needed.
  5. If the sauce is too thick, add a tablespoon of pasta water (reserved from cooking your pasta) until you reach your desired consistency.
  6. Toss immediately with hot, cooked pasta, such as fettuccine, or use as a topping for chicken or vegetables.

Notes

  • Use high-quality, freshly grated Parmesan cheese for the best melting and flavor. Pre-shredded cheese often contains anti-caking agents that prevent smooth sauce formation.
  • For a slightly thinner sauce, you can increase the heavy cream by 1/4 cup.
  • This recipe is the base for a classic Alfredo; for a cream cheese variation, substitute 4 oz of cream cheese for 1/2 cup of the heavy cream.

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