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Oatmeal Chocolate Chip Cake

Course: Dessert
Cuisine: American
Keyword: baking, cake, chocolate, chocolate cake, dessert, oatmeal, oatmeal chocolate chip
Prep Time: 25 minutes
Cook Time: 45 minutes
Total Time: 1 hour 10 minutes
Servings: 20 slices
Author: Rachel Alexandra
This cake is a guaranteed crowd-pleaser. It's soft and moist and rich with chocolate. The crunchy sugar topping is the "icing" on the cake!
Print Recipe


  • 9x13 baking dish
  • Tea kettle


  • 1 ¾ cup boiling water
  • 1 cup old fashioned oats
  • 1 ¼ cup raw, white sugar ¼ cup reserved
  • 1 cup brown sugar
  • ½ cup butter softened
  • 6 Tbsp aquafaba
  • 1 ¾ cup whole wheat pastry flour
  • 1 tsp baking soda
  • 1 tsp salt
  • 1 Tbsp unsweetened cocoa powder
  • 12 oz semisweet chocolate chips


  • Preheat oven to 350°F and grease a 9x13 baking dish.
  • Heat the water in a tea kettle until boiling. Place the oats in a small bowl and the pour the water on top. Let stand 10 minutes.
  • Meanwhile, place the softened butter, 1 cup of raw, white sugar, and 1 cup of brown sugar in the bowl of a stand mixer. Using the paddle attachment, cream the butter and sugar. (An electric hand mixer would also work.)
  • Add the oat mixture, aquafaba, flour, baking soda, salt, and cocoa. If using the stand mixer, continue to mix on a low setting, remembering to scrape down the sides of the bowl periodically. If you used a hand mixer earlier, add the remaining ingredients and stir by hand, to avoid over-mixing with beaters.
  • Fold in half of the chocolate chips.
  • Pour the batter into the prepared baking dish.
  • Sprinkle the remaining chocolate chips and reserved ¼ cup of sugar over the top.
  • Bake for 40-45 minutes, or until a toothpick inserted in the center comes out clean (with the exception of melted chocolate). Enjoy!