Preheat oven to 350°F.
In a medium bowl, add the flour, baking powder, baking soda, salt, and oats. Mix well.
3/4 cup all purpose flour, 1/2 teaspoon baking powder, 1/2 teaspoon baking soda, 1/4 teaspoon salt, 2 cups old fashioned rolled oats
Add the butter, sugar, and brown sugar to the bowl of an electric mixer fitted with a paddle. Beat on medium speed until blended and fluffy, about 2 minutes.
1/2 cup unsalted butter, 1/2 cup granulated sugar, 1/2 cup brown sugar
Lower the speed and add the egg and vanilla extract. Let mix until evenly blended.
1 egg, 1 teaspoon vanilla extract
Gradually add the flour mixture until it is all fully incorporated, scraping down the sides of the bowl, as needed.
Turn off the mixer and stir in the SCHARFFEN BERGER Semisweet 62% cacao dark chocolate baking chunks.
1 cup SCHARFFEN BERGER Semisweet 62% cacao dark chocolate baking chunks
Bake for 10-12 minutes or until the edges and bottoms are just lightly browned. The cookies will have crisp edges and a chewy middle when done.
Serve warm out of the oven or at room temperature.