St Patricks Day Rainbow Bars (Printable version)

Buttery bars with white chocolate and vibrant sprinkles, perfect for festive occasions and sharing.

# 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

# Directions:

01 - Preheat oven to 350°F. Line a 9x9-inch baking pan with parchment paper, leaving 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 25-28 minutes, or until edges are golden and a toothpick inserted into center comes out mostly clean.
08 - Cool completely in the pan on a wire rack before slicing into bars.

# Expert Advice:

01 -
  • Effortlessly festive with vibrant rainbow sprinkles and white chocolate chips
  • Simple one-bowl mixing for easy preparation
  • Perfect for St. Patrick's Day celebrations or any time you want a colorful treat
  • Soft, buttery texture with a slight chewiness that's irresistible
  • Kid-friendly and great for bake sales, parties, or gifting
02 -
  • Use parchment paper with a generous overhang to lift the bars out easily for clean slicing
  • Don't overbake—the bars will continue to firm up as they cool, and slightly underbaked centers yield the chewiest texture
  • Store bars in an airtight container at room temperature for up to 4 days, or freeze for up to 3 months
  • For extra festivity, drizzle with melted white chocolate or decorate with small shamrock candies
  • Always check sprinkle and chocolate chip packaging for allergen information if serving to guests with dietary restrictions
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