Easy Make Spring Confetti Bars

Confetti Bars made with spring-colored M&M's, white chocolate, spring sprinkles, and gooey marshmallows. These easy dessert bars are sure to please a crowd!

Ingredients of Confetti Bars

• 12 tablespoons (170 grams) unsalted butter, (at room temperature)
• 1 cup (205 grams) white granulated sugar
• 1/2 cup (100 grams) light brown sugar, (lightly packed)
• 1 large egg
• 1 large egg yolk
• 2 teaspoons vanilla extract
• 2 cups + 2 tablespoons (300 grams) white all-purpose flour
• 1/2 teaspoon baking soda
• 1/2 teaspoon fine sea salt
• 1 and 1/4 cups white chocolate chips, (divided (1 cup is 160 grams))
• 3 cups (137 grams) miniature marshmallows
• 3/4 cup (152 grams) spring-colored M&M's
• 1-3 tablespoons spring-colored sprinkles ((See Note 1))

Instructions

STEP 1

PREP: Preheat the oven to 350 degrees F. Grease a 9x13-inch pan with cooking spray and line with parchment paper (I don't recommend lining with foil). These bars are sticky so you do want the parchment paper.

STEP 2

WET INGREDIENTS: In a large bowl, combine 12 tablespoons room-temperature butter with the 1 cup white sugar and 1/2 cup light brown sugar in a medium sized bowl. Beat with hand mixer (or in a stand mixer) until light and creamy. Add in the egg, egg yolk, and 2 teaspoons vanilla. Mix until combined.

STEP 3

DRY INGREDIENTS: In a separate large bowl, combine the 2 cups + 2 tablespoons white flour, 1/2 teaspoon baking soda, and 1/2 teaspoon salt. Stir. Add wet ingredients to dry ingredients and stir until just combined. With a wooden spoon, stir in 1 cup of white chocolate chips and stir until combined.

STEP 4

BAKE: Press the cookie dough into the prepared 9x13-inch pan. Bake the bars for 22-26 minutes or until the top is no longer glossy and edges are ever-so-slightly browned. Remove from the oven and immediately top with the miniature marshmallows. Return to the oven for 1 minute and 30 seconds.

STEP 5

FINISHING: Gently press the marshmallows down a little. Sprinkle the remaining 1/4 cup white chocolate chips evenly over the bars. Sprinkle the 3/4 cup M&M's evenly over the bars. Scatter the sprinkles evenly over the bars.

STEP 6

SERVE: Let cool completely (these bars take 1-3 hours to really set up) and then cut with a hot, sharp knife (run the knife under hot water, dry, make a slice, repeat). Confetti Bars are best enjoyed within 1-2 days; after that the marshmallows become unpleasant.