Melt Butter: In a skillet, melt the butter over medium heat. Once melted, add the minced garlic and sauté for 1-2 minutes until fragrant.
Add Cream: Pour in the heavy cream and stir. Bring it to a gentle simmer, ensuring it doesn’t boil.
Season: Add the Cajun seasoning, cayenne pepper (if using), salt, and black pepper. Stir to combine and allow the sauce to simmer for about 3-5 minutes, thickening slightly.
Add Cheese: Stir in the grated Parmesan cheese and let it melt into the sauce. Continue simmering for another 2 minutes, stirring frequently.
Finish with Lemon Juice: Squeeze in the lemon juice and stir to combine. Taste the sauce and adjust seasoning as needed.
Serve: Remove from heat and serve over your favorite dish, such as pasta, grilled chicken, or shrimp.