Nutella Swirl Cookie Bars

Ingredients

• 0.5 cup unsalted butter (browned and slightly cooled)
• 0.333 cup granulated sugar
• 0.5 cup packed brown sugar (packed)
• 1 large egg
• 1 tsp vanilla extract
• 0.5 tsp baking soda
• 0.25 tsp salt
• 186 g all-purpose flour
• 255 g chocolate chips
• 0.5 cup Nutella (about 1/2–3/4 cup; some is layered inside and some is dolloped on top for swirling)
• chocolate chunks (optional, for sprinkling on top while the bars are warm)

Steps

1. 1

   Preheat the oven to 350°F (175°C). Line an 8×8-inch or 9×9-inch baking pan with parchment paper.

2. 2

   In a large bowl, whisk the browned, slightly cooled butter with the granulated sugar and packed brown sugar until smooth.

3. 3

   Add the egg and vanilla extract, then mix until fully combined.

4. 4

   Stir in the flour, baking soda, and salt until just combined, leaving a few streaks of flour.

5. 5

   Fold in the chocolate chips until distributed throughout the dough.

6. 6

   Spread half of the cookie dough evenly into the prepared pan.

7. 7

   Spread a layer of Nutella over the dough.

8. 8

   Add the remaining dough and gently spread it over the Nutella layer to cover it.

9. 9

   Dollop a little more Nutella over the surface. Use a knife or toothpick to create swirls through the top.

10. 10

    Bake for 25–28 minutes, until the bars are golden brown and set in the center.

11. 11

    While the bars are still warm, sprinkle additional chocolate chunks over the top if desired.

12. 12

    Let the bars cool slightly before slicing and serving.

Notes

The source gives two possible pan sizes, 8×8 inches or 9×9 inches. Nutella is listed as approximately 1/2–3/4 cup, without a gram measurement. The source does not specify the number or size of slices.

Nutrition per serving

• dessert
• bars
• cookies
• chocolate
• Nutella
• baked
• American
• vegetarian