Season the chicken thighs with salt and pepper on both sides.
6 bone-in, skin-on chicken thighs
In a skillet over medium heat, pour the olive oil in. Sear the chicken thighs for about 2-3 minutes per side to enhance the flavor.
1 Tablespoon olive oil
Place the diced potatoes and sliced mushrooms at the bottom of the slow cooker.
2 large russet potatoes, 8 ounces mushrooms
Layer the chicken thighs over the potatoes and mushrooms.
In a medium bowl, combine the chicken broth, heavy cream, grated Parmesan cheese, minced garlic, dried basil, dried oregano, dried parsley, salt, and black pepper. Stir well to mix the ingredients.
½ cup chicken broth, 1 cup heavy cream, 1 cup grated Parmesan cheese, 4 cloves garlic, 1 teaspoon dried basil, 1 teaspoon dried oregano, ½ teaspoon dried parsley, 1 teaspoon coarse Kosher salt, ¼ teaspoon black pepper
Pour the sauce mixture over the chicken in the slow cooker.
Cover the slow cooker and cook on low for 6-7 hours or on high for 3-4 hours, until the chicken is tender and cooked through.
About 30 minutes before serving, make a cornstarch slurry by mixing cold water and cornstarch in a little bowl. Pour the cornstarch slurry into the sauce so that it can thicken. Cover and cook on high for an additional 30 minutes.
2 Tablespoons cornstarch, 2 Tablespoons cold water
Serve the Garlic Parmesan Chicken over cooked rice alongside the mushrooms and potatoes. Garnish with chopped fresh parsley and additional grated Parmesan cheese if desired.
Chopped fresh parsley