# What You'll Need:
→ Dry Ingredients
01 - 2 cups all-purpose flour
02 - 1/2 teaspoon baking powder
03 - 1/4 teaspoon salt
→ Wet Ingredients
04 - 3/4 cup unsalted butter, melted and cooled
05 - 1 cup granulated sugar
06 - 1/2 cup light brown sugar, packed
07 - 2 large eggs
08 - 2 teaspoons pure vanilla extract
→ Mix-Ins
09 - 3/4 cup white chocolate chips
10 - 1/2 cup rainbow sprinkles, divided for St. Patrick's Day theme
# Steps to Follow:
01 - Preheat oven to 350°F. Line a 9x9-inch baking pan with parchment paper, allowing overhang for easy removal.
02 - In a medium bowl, whisk together flour, baking powder, and salt. Set aside.
03 - In a large bowl, whisk melted butter, granulated sugar, and brown sugar until smooth. Add eggs and vanilla extract; whisk until fully combined.
04 - Gradually fold dry ingredients into wet ingredients using a spatula, mixing until just combined.
05 - Stir in white chocolate chips and 1/3 cup of rainbow sprinkles.
06 - Spread batter evenly into prepared pan. Sprinkle remaining sprinkles over the top.
07 - Bake for 25-28 minutes, or until edges are golden and a toothpick inserted into the center comes out mostly clean.
08 - Cool completely in the pan on a wire rack before slicing into bars.