Oatmeal Cake with Chocolate is a rich, moist dessert made by blending oats, cocoa, and melted chocolate into a soft, tender cake.
Its deep chocolate flavor is balanced by the chewy texture of oats, giving each bite a comforting homemade taste.
This Oatmeal Cake with Chocolate is incredibly delicious, with layers of gooey chocolate and a slightly crisp topping that melts in your mouth.
Many people enjoy making Oatmeal Cake with Chocolate at home by watching simple baking videos online or following step-by-step recipes.
Now I will guide you through the process of creating this irresistible Oatmeal Cake with Chocolate in your own kitchen.
Why You’ll Love This Recipe
This Oatmeal Cake with Chocolate is a delightful blend of hearty and sweet, making it a perfect treat for any occasion. Here’s why I’m confident you’ll fall in love with this recipe:
1. Easy to Make: With simple ingredients and straightforward steps, this cake is perfect for both beginners and seasoned bakers.
2. Rich Flavor: The combination of oats and chocolate creates a wonderfully rich and satisfying dessert that’s not too heavy but incredibly indulgent.
3. Versatile: Enjoy it on its own, or dress it up with a scoop of ice cream or a drizzle of caramel sauce for an extra special treat.
4. Comforting and Nostalgic: The warm, familiar flavors of oatmeal and chocolate bring a sense of comfort and nostalgia, making this cake a true crowd-pleaser.
5. Perfect for Any Occasion: Whether it’s a casual family dinner, a holiday gathering, or a potluck, this cake is sure to impress and satisfy everyone’s sweet tooth.

Oatmeal Cake Chocolate
Recipe Overview
Preparation Time: 15 minutes
Cooking Time: 35 minutes
Total Time: 50 minutes
Course: Dessert
Cuisine: American
Calories: 250
Serving Size: 12 servings
Kitchen Utensils Needed
- Mixing bowls
- Measuring cups and spoons
- 9×13-inch baking pan
- Spatula
- Electric mixer or whisk
- Saucepan
- Cooling rack
Ingredients Needed
- 1 cup boiling water
- 1 cup quick-cooking oats
- 1/2 cup unsalted butter, softened
- 1 cup packed brown sugar
- 1 cup granulated white sugar
- 2 large eggs
- 1 cup all-purpose flour
- 1/2 cup unsweetened cocoa powder
- 1/2 teaspoon baking soda
- 1/4 teaspoon salt
- 1/2–3/4 cup mini marshmallows
- 6 tablespoons butter (for topping)
- 6 tablespoons milk (for topping)
- 1/2 cup mini chocolate chips (optional, for extra richness)
- 1/2–3/4 cup chocolate chips (preferably Ghirardelli, for topping)
How To Make Oatmeal Cake with Chocolate
1. Preheat your oven to 350°F (175°C). In a small bowl, pour the boiling water over the oats and let them sit for 10 minutes to soften.
2. In a large mixing bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy. Beat in the eggs one at a time. Stir in the soaked oats.
3. In another bowl, whisk together the flour, cocoa powder, baking soda, and salt. Gradually mix the dry ingredients into the wet mixture until fully incorporated. Fold in the mini chocolate chips, if using.
4. Pour the batter into a greased 9×13-inch baking pan and smooth the top. Bake for about 30–35 minutes, or until a toothpick inserted in the center comes out clean.
5. In a saucepan over low heat, combine the 6 tablespoons of butter, milk, marshmallows, and chocolate chips. Stir until melted and smooth.
6. Pour this mixture over the warm cake and spread evenly. Let cool slightly before serving.
Recipe Variations
1. Nutty Chocolate Oatmeal Cake:
Add ½ cup of chopped walnuts, pecans, or almonds to the batter for a delightful crunch that complements the rich chocolate.
2. Coconut Chocolate Oatmeal Cake:
Stir in ½ cup of shredded coconut to give the cake a tropical twist. The coconut adds a subtle sweetness and texture that pairs beautifully with the chocolate.
3. Peanut Butter Chocolate Oatmeal Cake:
Swirl ½ cup of creamy peanut butter into the batter before baking for a rich, nutty flavor that elevates the classic chocolate and oatmeal combination.
4. Fruit and Chocolate Oatmeal Cake:
Mix in ½ cup of dried fruit, such as raisins, cranberries, or chopped dried apricots, to add a sweet and chewy contrast to the cake’s texture.
5. Double Chocolate Oatmeal Cake:
For the ultimate chocolate experience, use both semi-sweet chocolate chips and ¼ cup of cocoa powder in the batter. This variation is perfect for true chocolate lovers.
Advice For Best Results
To achieve the best texture, make sure to let the oats soak fully in the boiling water before mixing them into the batter.
This helps keep the cake moist and tender. Use room temperature butter and eggs to ensure even mixing and a smooth batter.
When adding the topping, pour the warm mixture evenly and do it immediately after baking so it soaks into the cake nicely.
Let the cake cool slightly before serving to allow the flavors to meld and the topping to set properly.
How Do I Store This Cake?
Store the oatmeal cake with chocolate in an airtight container at room temperature for up to two days. For longer freshness, keep it covered in the refrigerator for up to five days.
Before serving, you can warm individual slices slightly to bring back the gooey texture of the topping. Make sure the cake is completely cooled before storing to prevent sogginess.
Conclusion
I hope you try making this oatmeal cake with chocolate soon. It combines rich chocolate flavors and the hearty texture of oats, creating a delicious and satisfying dessert.
The gooey marshmallow and chocolate topping add an extra layer of indulgence that makes every bite enjoyable.
This oatmeal cake with chocolate is great to share with friends or family and can be a wonderful way to brighten up any day. Baking it yourself allows you to enjoy a fresh, homemade treat that everyone will love.
Here Are A Few More Chocolate Cake Recipes You Might Enjoy
Strawberry Covered Chocolate Cake
Strawberry Chocolate Mousse Cake

Oatmeal Cake with Chocolate
Equipment
- Mixing bowls
- Measuring cups and spoons
- 9×13 inch baking pan,
- Spatula
- Electric mixer or whisk
- Saucepan
- Cooling rack
Ingredients
- 1 cup boiling water
- 1 cup quick-cooking oats
- 1/2 cup unsalted butter softened
- 1 cup packed brown sugar
- 1 cup granulated white sugar
- 2 large eggs
- 1 cup all-purpose flour
- 1/2 cup unsweetened cocoa powder
- 1/2 teaspoon baking soda
- 1/4 teaspoon salt
- 1/2 –3/4 cup mini marshmallows
- 6 tablespoons butter for topping
- 6 tablespoons milk for topping
- 1/2 cup mini chocolate chips optional, for extra richness
- 1/2 –3/4 cup chocolate chips preferably Ghirardelli, for topping
Instructions
- Preheat your oven to 350°F (175°C). In a small bowl, pour the boiling water over the oats and let them sit for 10 minutes to soften.
- In a large mixing bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy. Beat in the eggs one at a time. Stir in the soaked oats.
- In another bowl, whisk together the flour, cocoa powder, baking soda, and salt. Gradually mix the dry ingredients into the wet mixture until fully incorporated. Fold in the mini chocolate chips, if using.
- Pour the batter into a greased 9×13-inch baking pan and smooth the top. Bake for about 30–35 minutes, or until a toothpick inserted in the center comes out clean.
- In a saucepan over low heat, combine the 6 tablespoons of butter, milk, marshmallows, and chocolate chips. Stir until melted and smooth.
- Pour this mixture over the warm cake and spread evenly. Let cool slightly before serving.