Store bought: Tillamook Chocolate Peanut Butter
Ice cream shop: Carl’s Frozen Custard in VA. It’s pretty famous in the US. Easily the best frozen custard anywhere. They’re still using their old Electo-Freeze machines to make it. I get their chocolate vanilla swirl or strawberry. So smooth and creamy.
That’s why they’re so pervasive, they work on the majority of people (that’s not us).