Brownie Cookie Bars with Lucky Charms
Brownie Cookie Bars with Lucky Charms
Ingredients
For the Brownie Batter
- 1/2 cup unsalted butter, melted
- 1 cup granulated sugar
- 1/2 cup light brown sugar, packed
- 2 large eggs
- 1 teaspoon vanilla extract
- 3/4 cup all-purpose flour
- 1/2 cup unsweetened cocoa powder
- 1/2 teaspoon baking powder
- 1/4 teaspoon salt
For the Cookie Dough
- 1/2 cup unsalted butter, softened
- 1/2 cup granulated sugar
- 1/4 cup light brown sugar, packed
- 1 large egg
- 1/2 teaspoon vanilla extract
- 1 1/4 cups all-purpose flour
- 1/2 teaspoon baking soda
- 1/4 teaspoon salt
- 1 cup Lucky Charms marshmallows
For Assembly
- as needed non-stick cooking spray
Instructions
- 1
Preheat your oven to 350°F. Line a 9x9 inch baking pan with parchment paper, leaving an overhang on the sides to easily lift the bars out later. Lightly spray the parchment paper with non-stick cooking spray.
⏱️ 5 min•🌡️ 350
- 2
To make the brownie batter: In a large bowl, whisk together the melted unsalted butter, granulated sugar, and light brown sugar until well combined and smooth. It should be light brown and slightly frothy.
⏱️ 3 min
- 3
Whisk in the 2 large eggs one at a time, then stir in the vanilla extract until fully incorporated.
⏱️ 2 min
- 4
In a separate medium bowl, whisk together the all-purpose flour, unsweetened cocoa powder, baking powder, and salt. Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Be careful not to overmix. Set the brownie batter aside.
⏱️ 5 min
- 5
To make the cookie dough: In a separate large bowl, cream together the softened unsalted butter, granulated sugar, and light brown sugar with an electric mixer until light and fluffy.
⏱️ 3 min
- 6
Beat in the 1 large egg and vanilla extract until well combined.
⏱️ 2 min
- 7
In a medium bowl, whisk together the all-purpose flour, baking soda, and salt. Gradually add the dry ingredients to the wet ingredients, mixing on low speed until just combined. Fold in the Lucky Charms marshmallows.
⏱️ 5 min
- 8
Spoon alternating dollops of brownie batter and cookie dough into the prepared baking pan. Use a knife or skewer to gently swirl the two batters together to create a marbled effect. Do not overmix the swirls.
⏱️ 5 min
- 9
Bake for 30-35 minutes, or until a toothpick inserted into the center comes out with moist crumbs, but not wet batter. The edges should be set, and the cookie dough portions should be lightly golden.
⏱️ 30 min•🌡️ 350
- 10
Remove the pan from the oven and let the bars cool completely in the pan on a wire rack before lifting them out using the parchment paper overhang. This can take at least 1 hour. Once cooled, cut into 9 squares and serve.
⏱️ 60 min
Kitchen Tools
Nutrition Facts (per serving)
Brownie Cookie Bars with Lucky Charms
For the Brownie Batter
- 1/2 cup unsalted butter, melted
- 1 cup granulated sugar
- 1/2 cup light brown sugar, packed
- 2 large eggs
- 1 teaspoon vanilla extract
- 3/4 cup all-purpose flour
- 1/2 cup unsweetened cocoa powder
- 1/2 teaspoon baking powder
- 1/4 teaspoon salt
For the Cookie Dough
- 1/2 cup unsalted butter, softened
- 1/2 cup granulated sugar
- 1/4 cup light brown sugar, packed
- 1 large egg
- 1/2 teaspoon vanilla extract
- 1 1/4 cups all-purpose flour
- 1/2 teaspoon baking soda
- 1/4 teaspoon salt
- 1 cup Lucky Charms marshmallows
For Assembly
- as needed non-stick cooking spray
Instructions
- 1
Preheat your oven to 350°F. Line a 9x9 inch baking pan with parchment paper, leaving an overhang on the sides to easily lift the bars out later. Lightly spray the parchment paper with non-stick cooking spray.
⏱️ 5 min•🌡️ 350 - 2
To make the brownie batter: In a large bowl, whisk together the melted unsalted butter, granulated sugar, and light brown sugar until well combined and smooth. It should be light brown and slightly frothy.
⏱️ 3 min - 3
Whisk in the 2 large eggs one at a time, then stir in the vanilla extract until fully incorporated.
⏱️ 2 min - 4
In a separate medium bowl, whisk together the all-purpose flour, unsweetened cocoa powder, baking powder, and salt. Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Be careful not to overmix. Set the brownie batter aside.
⏱️ 5 min - 5
To make the cookie dough: In a separate large bowl, cream together the softened unsalted butter, granulated sugar, and light brown sugar with an electric mixer until light and fluffy.
⏱️ 3 min - 6
Beat in the 1 large egg and vanilla extract until well combined.
⏱️ 2 min - 7
In a medium bowl, whisk together the all-purpose flour, baking soda, and salt. Gradually add the dry ingredients to the wet ingredients, mixing on low speed until just combined. Fold in the Lucky Charms marshmallows.
⏱️ 5 min - 8
Spoon alternating dollops of brownie batter and cookie dough into the prepared baking pan. Use a knife or skewer to gently swirl the two batters together to create a marbled effect. Do not overmix the swirls.
⏱️ 5 min - 9
Bake for 30-35 minutes, or until a toothpick inserted into the center comes out with moist crumbs, but not wet batter. The edges should be set, and the cookie dough portions should be lightly golden.
⏱️ 30 min•🌡️ 350 - 10
Remove the pan from the oven and let the bars cool completely in the pan on a wire rack before lifting them out using the parchment paper overhang. This can take at least 1 hour. Once cooled, cut into 9 squares and serve.
⏱️ 60 min