Peel and dice the potatoes into small cubes.
Chop the onion and mince the garlic.
Add potatoes, onion, and garlic to the crock pot.
Pour in the vegetable broth and stir to combine.
Season with thyme, salt, and pepper.
Cover and cook on low for 6-8 hours or high for 3-4 hours.
Once cooked, use a potato masher to blend the soup to your desired consistency.
Stir in the heavy cream until fully combined.
Adjust seasoning if necessary.
Serve hot, garnished with bacon bits and green onions if desired.