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Cozy Soft Frosted Sugar Cookie Bars

soft frosted sugar cookie bars - featured image

Soft, tender sugar cookie bars with a buttery crumb and smooth, creamy vanilla frosting, perfect for back-to-school treats or cozy snacks.

Ingredients

Scale
  • 1 cup (227g) unsalted butter, softened
  • 1 cup (200g) granulated sugar
  • 1/2 cup (110g) packed brown sugar
  • 2 large eggs, room temperature
  • 2 teaspoons pure vanilla extract
  • 3 cups (375g) all-purpose flour
  • 1 teaspoon baking powder
  • 1/2 teaspoon salt
  • 1 cup (120-160g) powdered sugar (for frosting)
  • 23 tablespoons heavy cream or whole milk (for frosting)
  • Optional sprinkles

Instructions

  1. Preheat your oven to 350°F (175°C) and grease or line your 9×13-inch baking pan with parchment paper.
  2. In a large bowl, beat 1 cup softened unsalted butter, 1 cup granulated sugar, and 1/2 cup packed brown sugar until light and fluffy, about 3-4 minutes. Scrape down the bowl halfway for even mixing.
  3. Beat in 2 large eggs, one at a time, then 2 teaspoons pure vanilla extract until creamy and smooth.
  4. In a separate bowl, whisk together 3 cups all-purpose flour, 1 teaspoon baking powder, and 1/2 teaspoon salt.
  5. Gradually add the dry ingredients to the wet mixture, beating on low speed just until combined. The dough will be thick and slightly sticky.
  6. Spread dough evenly in the prepared pan using a spatula or lightly floured hands, smoothing the top.
  7. Bake for 25-28 minutes, until edges are lightly golden and a toothpick inserted in the center comes out clean or with a few moist crumbs. Avoid overbaking.
  8. Cool completely on a cooling rack for at least 30 minutes before frosting.
  9. For the frosting, beat 1 cup softened unsalted butter until creamy. Gradually add 3-4 cups powdered sugar, alternating with 2-3 tablespoons heavy cream or milk, beating until fluffy and spreadable. Stir in 1 teaspoon vanilla extract. Adjust cream or sugar for desired consistency.
  10. Spread frosting evenly over cooled bars. Add sprinkles if desired.
  11. Slice into 12-16 bars using a sharp knife warmed under hot water and dried to prevent crumbling.
  12. Serve immediately or store in an airtight container.

Notes

Do not overbake to keep bars soft. Let bars cool completely before frosting to avoid melting. Use a warm knife to slice bars cleanly. For gluten-free, substitute all-purpose flour with a 1:1 gluten-free baking blend and ensure baking powder is gluten-free. For dairy-free frosting, use vegan butter and dairy-free milk like coconut or almond milk.

Nutrition

Keywords: sugar cookie bars, soft cookie bars, frosted sugar bars, back-to-school treats, easy cookie bars, vanilla frosting, soft cookies