Prepare the Pasta:
Bring a large pot of salted water to a boil. Add the pasta and cook until al dente, according to package instructions. Reserve 1 cup of pasta water, then drain the pasta and set aside.

Make the Creamy Boursin Sauce:
In a large skillet over medium heat, melt the butter. Add minced garlic and sauté for 1-2 minutes until fragrant.
Pour in the heavy cream and warm gently, stirring occasionally—avoid boiling.
Add the Boursin cheese, breaking it into smaller chunks. Stir continuously until it melts into a smooth, creamy sauce.
Season with salt, pepper, and red pepper flakes (if using). Stir in grated Parmesan for extra richness.

Combine Pasta and Sauce:
Add the cooked pasta to the skillet with the sauce. Toss gently to coat the pasta evenly.
If the sauce is too thick, add reserved pasta water a little at a time until the desired consistency is reached.
Gently fold in any optional add-ins like cooked proteins or vegetables.

Serve and Garnish:
Plate the pasta, twirling it into a neat mound for an elegant presentation.
Garnish with fresh herbs, an extra sprinkle of Parmesan, and a drizzle of olive oil or lemon juice if desired.
Serve immediately while warm and creamy.