3/4 cup all-purpose flour
3/4 cup granulated sugar
1/3 cup bittersweet chocolate, (2 ounces) coarsely chopped
1/2 cup unsweetened cocoa powder, sifted
1/4 tsp baking powder
1/4 tsp table salt
1/3 cup canola oil
2 large eggs
1/2 tsp vanilla extract
Reese's peanut butter cups, chopped (I didn't measure, add what you want)
Peanut butter-I used creamy, about a 1/3 of a cup
Position an oven rack on the middle rung. Heat oven to 350 degrees. Lightly grease the bottom and sides of a 9-inch round cake or pie pan.
In a medium bowl, sift together the flour, sugar, cocoa powder, baking powder, and salt. Add in the chocolate chunks. Whisk until blended.
In a separate bowl, mix together the oil, eggs, and extract with a fork until just blended.
Pour the liquid over the flour mixture and mix with a rubber spatula until just blended. The batter will be kind of dry, don’t worry. Add in the peanut butter cups and stir until combined.
Scrape the mixture in to the pan and spread evenly. You might have to press the mixture in to the sides if you are having trouble spreading with a spatula. Swirl in the peanut butter with a toothpick or knife.
Bake for 25 minutes or until a toothpick or cake tester inserted in to the center comes out with only a few gooey pieces clinging to it. Transfer the baking dish to a cooling rack and let cool. Cut into wedges. Add a mini peanut butter cup on top, if you wish!