In a small saucepan, melt the butter over medium heat. Don’t rush it—you want it to shimmer, not burn.
Add the minced garlic and sauté 30 seconds to 1 minute until fragrant. No tanning bed drama here—keep it gentle.
Pour in the cream and bring to a light simmer. Stir continuously so it doesn’t cling to the bottom like a clingy ex.
Whisk in the parmesan cheese until smooth. If it clumps, lower the heat and keep whisking—perseverance pays off.
Season with salt, pepper, and red pepper flakes if using. Taste and adjust; you’re the boss of your own sauce.
Simmer for 2–4 minutes until slightly thickened. The sauce should coat the back of a spoon.
Stir in parsley, if using, and remove from heat. Serve warm over your favorite dish.