The origins of this old-school recipe are unknown, but it remains a classic for a reason: it combines a fudgy chocolate sheet cake with cheesecake polka dots and crunchy chocolate chips for texture. Yum!
Ingredients
Cooking spray
3c.
(360 g.) all-purpose flour
1/2c.
(40 g.) dark cocoa powder
2tsp.
baking soda
3/4tsp.
kosher salt
13/4c.
(350 g.) granulated sugar, divided
2c.
(475 ml.) cold water
2/3c.
(160 ml.) vegetable oil
2tbsp.
white vinegar
1tsp.
pure vanilla extract
1
large egg
1
(8-oz.) bar cream cheese, room temperature
1c.
(170 g.) semisweet chocolate chips
Directions
Directions
Step 1Preheat oven to 350º. Grease a 13"-by-9" pan with cooking spray.
Step 2In a large bowl, whisk flour, cocoa powder, baking soda, salt, and 1 1/2 cups granulated sugar. Whisk in water, oil, vinegar, and vanilla until well combined. Scrape batter into pan and spread in an even layer.
Step 3In a medium bowl, whisk egg, cream cheese, and remaining 1/4 cup granulated sugar until smooth and well combined. Stir in chips. Dollop cheesecake batter over chocolate batter to create a polka dot effect.
Step 4Bake until a tester inserted in the center comes out clean, 35 to 40 minutes. Let cool in pan on a wire rack. Slice and serve.