• 2 1/2 C all-purpose flour
• 1/2 tsp baking powder
• 1/2 tsp salt
• 1/2 C butter, softened
• 1 C granulated sugar
• 2 eggs
• 1 Tbsp lite sour cream
• 1 tsp vanilla extract
• 1 recipe vanilla frosting, recipe follows

Preheat oven to 375 degrees. Spray a 9×13-inch pan and set aside.  In a small mixing bowl, combine the flour, baking powder, and salt; set aside.  In a large bowl, whip together the butter and sugar until pale and fluffy, about 3-4 minutes.  Beat in the eggs.  Add sour cream and vanilla and mix until well-blended.  Slowly add the dry mixture and stir until well combined.  Gently press the batter into the sprayed baking dish.  Bake approximately 15 minutes, until toothpick inserted into the center comes out clean and edges are lightly golden.  Cool completely, then frost and cut into 18-24 bars.

Vanilla Frosting:

• 1/4 C unsalted butter, softened
• 2 C powdered sugar
• 3 Tbsp lowfat half and half
• 1 tsp vanilla extract
• pinch of salt
• several drops of food coloring

In a mixing bowl, with an electric mixer, whip together butter, powdered sugar, and half and half until fluffy.  Stir in the vanilla and salt.  Add in food coloring and mix until well blended.