1. Preheat oven to 375 degrees. Spray a 9×13 baking dish with cooking spray and set aside.
2. In a medium bowl mix flour, pudding mix, baking powder and salt and set aside.
3. Using an electric mixer cream butter and sugar.
4. Add in eggs and vanilla.
5. Gradually add in flour mixture until combined.
6. Spread into prepared baking dish.
7. Bake for about 11-14 minutes just until bottom begins to lightly brown. Don’t over bake. Top will not be firm, but will firm up upon sitting.
8. Remove from oven and set on a wire rack to cool completely.

Buttercream Frosting

1. Using an electric mixer cream butter.
2. Gradually add in confectioners’ sugar until combined.
3. Stir in vanilla extract.
4. Slowly add in milk, 1 tablespoon at a time until desired consistency.
5. Spread over bars and let set.
6. When ready to serve cut into bars and serve.
7. Store in an airtight container.