Prepare the Tortellini: Fill a large pot with water, adding a generous amount of salt, and bring it to a rolling boil. Add tortellini and cook according to package instructions. Drain and set aside.
Prepare the Sauce: In a large skillet, melt the butter over medium heat. • Incorporate the minced garlic, cooking it until it releases its aroma, which should take around 1 minute.
Add Tomato Base: Stir in the tomato paste and red pepper flakes. Cook for 2 minutes, allowing the tomato paste to deepen in color.
Simmer: Pour in the tomato sauce, chicken broth, and Italian seasoning. Mix everything well and allow the sauce to simmer for 5 minutes.
Make it Creamy: Lower the heat and slowly stir in the heavy cream (or half-and-half). Allow the mixture to simmer for an additional 2 to 3 minutes, stirring occasionally. Adjust the flavor by adding kosher salt and freshly cracked black pepper to your liking.
Combine: Gently fold in the cooked tortellini, tossing them to coat with the creamy tomato sauce.
Serve: Serve hot, topped with freshly grated Parmesan and basil if desired. Enjoy!