Step 1

In a medium saucepan over medium heat, melt the butter.

Step 2

Add the garlic and cook for 1 to 2 minutes, just until fragrant. Be careful not to let it brown.

Step 3

Stir in the heavy cream and bring to a gentle simmer. Let it cook for 2 to 3 minutes, stirring occasionally.

Step 4

Gradually whisk in the parmesan cheese until the sauce is smooth and fully melted.

Step 5

Stir in the basil pesto and cook for another 1 to 2 minutes to blend the flavors.

Step 6

Season to taste with salt and black pepper. Remove from heat and serve warm.