Melt the butter and stir in the minced garlic and thyme.
Add 1 cup chicken stock to the base of the Instant pot.
Place the chicken breasts onto the steam rack and pour the melted butter sauce over the top. Season with salt and pepper.
Cook on High, Manual mode for 18 minutes.
Quick release, add the baby potatoes, then cook on High, Manual mode for 5 more minutes.
Naturally release, then toss the chicken and potatoes with the liquid to get the herbs and garlic coated on them.
Prepare side dish veggies.
Serve Instant Pot Garlic Parmesan Chicken with shredded Parmesan cheese garnish and side of veggies.