With a name like Kickass Cupcakes, you can’t go wrong. Pastry chef and California transplant Sara Ross recently opened this cupcake-only business in Davis Square with much hoopla—and rightfully so. Her all-natural confections are baked fresh daily and contain no trans fats or preservatives. Many of the goodies are topped with sprinkles that are dyed using plant extracts and all the milk and cream she uses for baking, frosting and whipping comes from a farm in Dracut. Most important, these gourmet concoctions are baked with love. C’mon, you know you want one.