One Bowl Bittersweet Chocolate Bar Cookies

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Wonderful One-Bowl Chocolate Chip Bars!

It is summer and I seem to eat fewer baked goods – choosing instead a lot of fresh local fruit.  However, at times a girl has to have her chocolate.  And this girl doesn’t like to fuss with baking sheets of cookies.  Therefore, I went on a hunt for some chocolate chip bar cookies so everything could be baked in one fell swoop.  Along came this Allrecipes “Kirsten’s Dark Chocolate Chip Cookie Bars”, and I went for it since the entire batter can be made in one bowl.

Kirsten, your basic recipe sounded enticing but I couldn’t help changing things up ever so slightly.  The main difference is that I browned my butter to give the final bars a more interesting flavor.  

I baked these in a 9 x 12 cake pan and ended up with 24 pretty large bars, half to keep and half to gift.  

One Bowl Bittersweet Chocolate Bar Cookies

Makes 24 pieces



  • 2 sticks melted salted butter, browned 
  • 1 cup dark brown sugar
  • ½ cup granulated sugar
  • 2 large eggs, beaten
  • 1 tsp pure vanilla extract
  • 2 cups all purpose flour
  • 1 tsp baking soda
  • ¼ tsp baking powder
  • 1 tsp fine salt
  • 2 cups (1 package) bittersweet chocolate chips (I used Ghirardelli)

Preheat the oven to 350 degrees  with the oven rack in the center.  Spray a 9 x 13 inch cake pan and line the bottom with parchment paper.

To make perfect brown butter – here’s a YouTube video that teaches you all the tricks!

Mix melted browned butter with brown sugar and white sugar in a bowl.  Add the eggs and vanilla.  Stir until creamy.  Stir flour, baking soda, baking powder and salt together well and combine with the creamy butter mixture until well combined.  Fold in chocolate chips.  

Scrape the batter into the prepared cake pan and even out the top.  Bake in the preheated oven for 35-40 minutes until a cake tester or toothpick comes out clean  Cool well.

Easy Peasy Cutting

I then loosen the edges with a spatula and cover the cake pan with a cutting board, then flip the entire pan upside down so when you lift up the cake pan the bottom side of the bars are facing up.  This is a much easier way to cut bar cookies!  Carefully cut into 24 pieces.  

Bars can be covered well and kept at room temperature for three days or frozen for up to two months in a sealed container. 

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