Granola Brownie Bars Recipe | King Arthur Baking

Ingredients

• 12 tablespoons (170g) unsalted butter, at room temperature
• 1 1/2 to 2 cups (320g to 426g) light brown sugar or dark brown sugar, packed*
• 3 large eggs
• 1 tablespoon King Arthur Pure Vanilla Extract
• 2 cups (227g) King Arthur Golden Wheat Flour
• 2 1/2 teaspoons baking powder
• 1 teaspoon table salt
• 3 cups of mix-ins, any combination*