Toss the baby potatoes with olive oil, salt, and pepper until well coated.
Spread the potatoes on a baking sheet and roast for 25-30 minutes until tender and golden.
While potatoes roast, melt butter in a saucepan over medium heat. Add minced garlic and sauté for 1-2 minutes.
Pour in the heavy cream and bring to a gentle simmer. Stir frequently and cook for 3-4 minutes until thickened.
Stir in Parmesan cheese and allow to melt until sauce is smooth.
Transfer roasted potatoes to a serving dish. Pour creamy garlic sauce over the top and garnish with chopped parsley.
Notes
For quicker prep, use pre-minced garlic and store-bought grated Parmesan. You can also pressure cook the potatoes with a bit of water instead of roasting.