Chocolate Frosted Sugar Cookie Bars

5 / 5 (3 reviews)

Chocolate Frosted Sugar Cookie Bars are perfectly soft and chewy, with a thick layer of homemade chocolate fudge frosting, all topped with rainbow sprinkles. These bars come together in no time for a super quick and easy crowd-pleasing treat.

By: Tessa Arias (via Handletheheat)
Original Publish: Aug 14, 2024
Last Updated: Mar 1, 2026
Prep: 25 mins
Cook: 30 mins
Yields: 9, 9 large bars or 16 smaller bars
Finished Chocolate Frosted Sugar Cookie Bars

Ingredients

Instructions

  1. Preheat the oven to 350°F. Line a light-colored metal 8x8-inch baking pan with parchment paper leaving an overhang.

  2. Place the butter in a large microwave-safe bowl and microwave on 50% power until melted. Alternatively, melt in a medium saucepan on the stovetop. Whisk in the sugar. Let cool to just warm before whisking in the eggs, egg yolk, and vanilla until smooth. Stir in the flour, baking powder, and salt until just combined.

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Chef's Notes

*Be sure to measure your flour accurately. Use a digital kitchen scale or the ‘spoon and level’ method to avoid accidentally adding too much flour, causing hard, dry, or cakey cookie bars. 

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Reviews from the Original Source

Beverly ★ 5.0/5

Delicious and easy to make. I love the generous amount of frosting.

Jaime ★ 5.0/5

Loved this recipe but in the directions it doesn’t state when to add cocoa powder I did it with the sugar hopefully that was correct.

Julia Stearns @ Healthirony ★ 5.0/5

Oh my! These chocolate frosted sugar cookie bars were delicious and so easy to make! Will have to try this for my family. Thanks so much!

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