Step 1: Season the Chicken - Place the chicken breasts in the bottom of the slow cooker. Sprinkle the salt, black pepper, and garlic powder evenly over the top to ensure every bite is flavorful.
Step 2: Add the Creamy Base - Pour the chicken broth, heavy cream, and Alfredo sauce over the chicken. Make sure the chicken is mostly covered to allow it to cook evenly and absorb all the rich flavors.
Step 3: Slow Cook to Perfection - Cover and cook on low for 4 to 5 hours, until the chicken is fully cooked and tender. Your kitchen will begin to fill with a comforting aroma as the sauce develops.
Step 4: Shred the Chicken - Remove the cooked chicken and shred it using two forks. The meat should pull apart easily. Return the shredded chicken to the slow cooker and stir it into the sauce.
Step 5: Add the Tortellini - Stir in the frozen cheese tortellini, ensuring it is mostly submerged in the creamy sauce. This step adds heartiness and irresistible cheesy flavor.
Step 6: Cook Until Tender - Cover and cook for an additional 30 to 40 minutes, until the tortellini is tender and perfectly cooked.
Step 7: Stir in the Parmesan - Add the shredded Parmesan cheese and stir until melted and smooth, creating a thick and creamy sauce.
Step 8: Let It Rest - Allow the dish to sit for about 5 minutes before serving. This helps the sauce thicken slightly and ensures the perfect texture.