Place the fingerling potatoes in a 4-6 quart crock pot.
In a small bowl, whisk together heavy cream, garlic, parsley, thyme, rosemary, salt, and pepper.
Pour the mixture over the potatoes and stir to coat evenly.
Top with butter cubes.
Cover and cook on low for 4-5 hours or on high for 2-3 hours, until potatoes are tender.
Gently stir before serving and garnish with extra herbs if desired.