On Christmas morning or another cold winter day, hot chocolate was a go-to treat for many while growing up. In honor of those memories, Old Man Winter and National Hot Chocolate Day (Jan. 31) here’s a look at some places in South Jersey to pick up a warm favorite beverage. Barista’s Coffee House, Linwood This neighborhood coffeehouse also offers hot chocolate flights. They are a sampler of specialty hot chocolates. Barista’s Coffee House serves breakfast and lunch, and in addition to the hot chocolate, offers steamers, signature lattes, gourmet brewed coffee and more. Some of their hot chocolate flavors…..