1-First Step: Preheat and Prep

Preheat oven to 350°F (175°C). Grease a 9×13-inch baking pan or line with parchment for easy removal. Room-temperature ingredients mix smoothly, preventing lumps. This setup takes 5 minutes and ensures even baking for soft chocolate sugar cookie bars.

2-Second Step: Cream Butter and Sugar

In a large bowl, beat 1 cup softened unsalted butter and 1 ½ cups granulated sugar until light and fluffy, about 2-3 minutes. Use a hand mixer for best aeration. Add 2 large eggs one at a time, then 1 teaspoon vanilla extract. This base creates the chewy texture in easy chocolate sugar cookie bars recipe.

For vegan adaptation, prepare flax eggs ahead and mix in similarly.

3-Third Step: Combine Dry Ingredients

In a separate bowl, whisk 2 ½ cups all-purpose flour, 1 teaspoon baking powder, ½ teaspoon salt, and ½ cup unsweetened cocoa powder. Gradually add to wet mixture on low speed until just combined. Avoid overmixing to keep bars tender. Spoon flour into measuring cup and level off for accuracy.

Gluten-free? Swap flour here seamlessly.

4-Fourth Step: Fold in Chocolate Chips

Gently fold in 1 cup semi-sweet chocolate chips, plus optional ½ cup nuts. Dough will be thick and scoopable. For extra chewiness in soft chocolate sugar cookie bars, chill dough 30 minutes optional. Spread evenly into prepared pan using a spatula, pressing down firmly for uniform bars.

5-Fifth Step: Bake to Perfection

Bake 20-25 minutes. Edges set while center stays soft; toothpick shows moist crumbs. Rotate pan halfway for even browning. Overbaking leads to dryness, so watch closely. Cool in pan 10 minutes, then on wire rack fully before cutting.

6-Final Step: Cut and Serve

Lift bars using parchment overhang. Cut into 24 squares. Dust with powdered sugar or drizzle melted chocolate for flair. Store as noted below. These chocolate cookie bars pair with milk or coffee.