St Patricks Day Rainbow Bars (Printable)

Buttery bars with colorful sprinkles and white chocolate chips, perfect for festive occasions.

# 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

# How To Make It:

01 - Preheat oven to 350°F. Line a 9x9-inch baking pan with parchment paper, allowing overhang on edges for easy removal.
02 - In a medium bowl, whisk together flour, baking powder, and salt. Set aside.
03 - In a large bowl, whisk together melted butter, granulated sugar, and brown sugar until smooth. Add eggs and vanilla extract, whisking 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 to 28 minutes, or until edges are golden and a toothpick inserted into center comes out mostly clean.
08 - Allow bars to cool completely in pan on a wire rack before slicing into 16 pieces.

# Expert Advice:

01 -
  • They're buttery and tender without being fussy, making them nearly impossible to mess up even if you're baking on a whim.
  • The white chocolate and sprinkles give you that celebratory feeling without requiring any special culinary skills.
  • They come together in under an hour, which means you can actually enjoy the festive spirit instead of spending all day in the kitchen.
02 -
  • Don't skip cooling the bars completely, or they'll fall apart when you cut them no matter how careful you are.
  • The sprinkles on top matter more than sprinkles baked throughout because the ones on top stay vibrant and catch the light in that festive way that makes people smile.
03 -
  • Keep your baking pan the exact size called for, as a larger pan spreads the batter too thin and a smaller one makes them cakey and hard to cut.
  • The secret to bars that hold together is not opening the oven door before 20 minutes have passed, which gives the structure time to set without the shock of cold air.
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