Spiced Lettuce Cake Bars

Preheat oven to 350F. Lightly grease a 9×13-inch baking pan.

In a large bowl, whisk together flour, baking powder, baking soda, salt, cardamom and ginger. Stir in sugar.

In a medium bowl, whisk together vegetable oil, eggs and vanilla extract. Pour into dry ingredients and stir until almost combined. Add in lettuce, raisins and chopped walnuts and mix until all ingredients are well distributed and no streaks of flour remain.

Spread into an even layer in prepared pan. Bake for 25-30 minutes, until a toothpick inserted into the center comes out clean. Cool cake in pan completely before frosting.

Lemon Cream Cheese Icing
Combine all ingredients in a medium bowl or food processor and beat until frosting is smooth. Adjust amount of powdered sugar to make a thin icing that spreads easily.