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Dinner · Part 2 of 3: Instructions

One-Pot Garlic Parmesan Chicken and Potatoes Step-by-step instructions

A top-down view of a slow cooker filled with tender chicken, red potatoes, and a creamy garlic parmesan sauce.
Prep
Cook
Total
Serves
4
Includes 5 min resting

Before you start

Before starting, ensure all ingredients are ready for assembly. Wash and quarter the baby red potatoes, ensuring they are roughly the same size for even cooking. Cube the chicken breast into uniform pieces to ensure they finish cooking at the same time.

Verify that the slow cooker is clean and positioned on a stable, heat-resistant surface with easy access to a power outlet. Having everything organized makes the assembly phase quick and efficient.

Ingredients at a glance (5)
  • 1 1/2 lb chicken breast, cubed
  • 1 lb baby red potatoes, quartered
  • 1 tsp garlic powder
  • 1 cup garlic parmesan sauce, store-bought or made ahead
  • 1/2 cup mozzarella cheese, shredded

Instructions

Preparation and Layering

  1. Assemble the Ingredients
    Place the cubed chicken breast into the bottom of the slow cooker. Add the quartered baby red potatoes over the chicken. Sprinkle the garlic powder evenly over the chicken and potatoes.
    Look for the chicken and potatoes should be evenly distributed in the cooker
    Tip Ensure the potatoes are cut into uniform pieces so they cook evenly.

At the end of this phase, the slow cooker should be neatly filled with the cubed chicken at the bottom and the quartered potatoes on top. The garlic powder should be evenly distributed over the surface to ensure consistent seasoning throughout the meal.

Check that the ingredients are not packed too tightly, allowing for proper heat circulation during the cooking process. The scene should look organized and ready for the sauce to be added.

Slow Cooking

  1. Cook the Dish
    Pour the garlic parmesan sauce over the chicken and potatoes. Cover and cook on high for 4 hours, or until the chicken reaches 165°F (74°C) and the potatoes are fork-tender.
    Look for the sauce should be bubbling and the chicken cooked through
    Safe temperature 165°F (74°C) internal temperature (poultry)
    Tip Avoid opening the lid frequently during cooking to maintain the internal heat.

During the cooking phase, the slow cooker will begin to release aromatic scents of garlic and parmesan as the sauce simmers and coats the ingredients. By the end of this period, the sauce should have reduced slightly, becoming thicker and more flavorful. Ensure the chicken is fully cooked and the potatoes are fork-tender. The internal temperature must reach 165°F (74°C) to ensure the poultry is safe and ready for the final step.

Finishing and Melting

  1. Finish and Serve
    Sprinkle the shredded mozzarella cheese over the top of the dish. Cover the slow cooker for an additional 5 minutes to allow the cheese to melt fully before serving.
    Look for the cheese should be melted and gooey
    Tip Let the dish rest briefly before serving to allow the sauce to thicken slightly.

In the final phase, the mozzarella cheese should melt into a gooey, delicious layer over the top of the chicken and potatoes. The heat from the slow cooker will gently melt the cheese without burning it, creating a perfect crust.

Once the cheese is completely melted and bubbling slightly, the dish is ready to be plated and served. The final appearance should be inviting, with a creamy, golden-brown finish that is hot and ready to enjoy.

Common mistakes

A common mistake is overcrowding the slow cooker, which can prevent even heat distribution and lead to unevenly cooked ingredients. Always use a slow cooker that is appropriately sized for the quantity of food being prepared.

Another error is failing to ensure the chicken is cut into uniform pieces, as larger chunks may remain undercooked while smaller ones become dry. Finally, avoid lifting the lid during the cooking process, as this releases heat and moisture, significantly increasing the required cooking time.

How to tell it’s done

The dish is considered done when the chicken reaches an internal temperature of 165°F (74°C) as measured with a digital thermometer. At this point, the chicken should be opaque throughout and easily pulled apart with a fork. The potatoes should be soft and tender when pierced with a knife, and the sauce should have thickened slightly, clinging to the chicken and potatoes with a rich, creamy consistency that is fragrant and appetizing.

  • Poultry: 165°F (74°C) in the thickest part

Coming up in Part 3: common questions

  • Can this dish be prepared in advance?
  • Why is it important to cut the potatoes into uniform sizes?
  • What should be done if the sauce is too thin?

Also in Part 3: variations (Spicy Garlic Version, Vegetable Medley), storage and make-ahead, and the printable recipe card.

Up next · Part 3 of 3

2 variations · storage & make-ahead · 3 answers · printable card

Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)