Step 1: Season and Layer the Chicken - Place the chicken breasts in the slow cooker and sprinkle over the salt, pepper, garlic powder, and onion powder. Pour in the chicken broth and add the minced garlic. I like to give the broth a little stir around the chicken so those seasonings mingle. Right here you are building the flavor base that makes this dish special.
Step 2: Slow Cook Until Tender - Cover and cook on low for 6 to 7 hours or high for 3 to 4 hours until the chicken is very tender. I almost always go low when I can because the texture turns out so lovely. When chicken shreds easily with a fork, you know you are there.
Step 3: Cook the Egg Noodles - About 20 to 30 minutes before serving, boil your egg noodles until just tender. Do not overcook them because they will spend a little time in the sauce too. Drain them well and set them aside.
Step 4: Shred the Chicken - Lift the chicken out onto a plate and shred it with two forks. This is one of those satisfying kitchen moments. Tender strands of chicken ready to soak up creamy garlic sauce. Return it to the slow cooker once shredded.
Step 5: Make the Creamy Garlic Sauce - Now stir in the sour cream, softened cream cheese, and heavy cream. Take your time and stir until everything melts together into a smooth creamy sauce. Softened cream cheese really helps here. This is where the magic happens and the whole thing turns into comfort food heaven.
Step 6: Fold In the Noodles - Add the cooked egg noodles to the slow cooker and gently fold them into the sauce. Gentle is the key word because egg noodles can break apart if stirred too hard. Let everything sit for about 5 to 10 minutes so the sauce thickens a touch and clings to every noodle.
Step 7: Serve It Up Warm - Spoon it into bowls and serve hot. Around my table this is usually the point where everybody goes quiet for a few minutes because they are too busy eating.