Gather all your ingredients on the counter. Grate the Parmesan cheese and mince the garlic. This will help everything come together in the cooking process without a hitch.

In a medium saucepan, melt the unsalted butter over medium heat. Watch it carefully; you don’t want it to brown.

Once the butter is melted, add the minced garlic. Sauté it for about a minute until fragrant. Stir it around to ensure it doesn’t burn.

Next, slowly pour in the heavy cream. Stir it well, allowing the butter and cream to merge smoothly.

Once the cream is heated, add the grated Parmesan cheese. Stir continuously until it’s melted and the sauce is creamy. This will take a couple of minutes, so don't rush!

Add the crushed red pepper flakes, a sprinkle of sea salt, and black pepper. Adjust the seasoning according to your taste. Freshly chopped parsley can be added at this point or used as a garnish later.

Once your sauce is ready, serve it hot over pasta. Toss it with your cooked pasta right away for the best flavor and consistency.