Thanks to Kate Carrara walking away from life as an attorney, Philadelphians have  Buttercream, a cupcake truck.  This mobile bakery posts a weekly schedule on their website and also announces daily destinations on Twitter (@ButtercreamPhl).  If you're lucky, she's heading in your direction. 

As you stroll up the street, you can't miss Buttercream's refurbished postal truck, its white sides covered in colorful sprinkles.  You also can't miss the line that sometimes snakes around the block.  After one bite, you'll understand the hype.

Flavors vary day to day, depending on what Carrara bakes back in her Northern Liberties kitchen.  And it also depends on how late you arrive at her window to place your order.  Available choices are written on a chalk board and oftentimes include:

• Red Velvet with Cream Cheese Frosting
• Chocolate Cake with Peanut Butter Buttercream
• Yellow Cake with Chocolate Buttercream
• Banana Cake with Nutella Buttercream

The cake is always moist and light. But we all know it's really just a vehicle to deliver the rich buttery frosting. 

If you aren't in the city and still need a cupcake fix, you can place an order and have it delivered.  Additionally, you can reserve the truck for events. 

Anyone know if a thirty-something can pull off a cupcake truck at her birthday party?  Never mind.