The popularity of cupcakes seems not to wane however much another handheld dessert is claimed to supplant it. Chief among cupcake flavors is red velvet. The same is true at Sprinkles, a cupcake concern that came fresh out of the oven in Beverly Hills, quickly becoming a favorite of the Hollywood glitterati. The red velvet at Sprinkles not only comes in run of the mill form (as if that were possible), it is also available in gluten-free and vegan varieties. The dark chocolate, made with Belgian chocolate, and coconut, made with Madagascar Bourbon vanilla, are among the crowd-pleasers for those who frequent this chic sweets boutique in Preston Center.