Preheat oven to 350 degrees. Lightly spray a 9x13 baking pan with nonstick cooking spray. Set aside.
In a small bowl, combine baking powder, baking soda, salt and flour. Stir gently to mix.
1/2 teaspoon Baking Powder, 1 teaspoon Baking Soda, 1/2 teaspoon Salt, 1 3/4 cup Flour
In a large mixing bowl, cream together butter and sugars. Add in eggs, one at a time.
3/4 cup Butter, 3/4 cup Brown Sugar, 1/2 cup Sugar, 2 Eggs
In 1/2 cup increments, add in flour mixture. Let each prior additional mix in before adding more.
Fold in oats, carrots, chocolate chips and raisins. Spread cookie dough into prepared pan.
1 1/2 cup Oats, 1 cup Carrots, 1/2 cup White Chocolate Chips, 1/2 cup Raisins
Bake at 350 degrees for 20-25 minutes or until set and lightly browned. Remove from oven and let cool before slicing into bars.