Blue Cheese Dip

In a bowl, using a handheld electric mixer fitted with the beater attachments, beat the cream cheese on medium speed until soft and creamy, about 2 minutes. Reduce the speed to low, add the sour cream and beat until combined, about 1 minute. Add the blue cheese and beat until the cheese is crumbled and no large lumps remain, about 1 minute. Stir in the chives and pepper. Transfer the dip to a small serving bowl, cover with plastic wrap, and refrigerate for at least 30 minutes or up to 1 week. Serve with potato chips and crudités.