Enjoy a Sweet Treat
Looking for a perfect dessert? You will love this Portillo Chocolate Cake Recipe.
It is rich, moist, and very easy to bake. Learning how to make Portillo Chocolate Cake is simple.
We use specific ingredients for Portillo Chocolate Cake to get it right. Your friends will ask for this recipe every single time.
Tell Me About This Portillo Chocolate Cake
Amazing Flavor: The taste is deep and chocolatey without being too sweet for your liking.
Perfect Texture: This cake is incredibly moist and dense because of the secret mayonnaise addition.
Fast Preparation: You can whip up this entire delicious batter in under ten minutes flat.
Restaurant Style: It tastes just like the classic dessert from the famous Chicago restaurant chain.
Equipment List
Mixing Bowl: You need a large bowl to combine all your ingredients properly.
Electric Mixer: This helps you beat the batter until it is perfectly smooth.
Cake Pans: Two round pans are essential for getting that classic layer look.
Spatula: Use this to scrape the sides of the bowl for even mixing.
Cooling Rack: This ensures your cake layers cool down evenly before you frost.
Ingredients You Need for Portillo Chocolate Cake
Chocolate Cake Mix: Start with a high-quality box mix for the best base flavor.
Mayonnaise: This is the secret ingredient that keeps the cake moist for days.
Large Eggs: They act as the perfect binder to hold your cake together well.
Water: Use room temperature water to blend the batter ingredients together easily.
Chocolate Frosting: Pick a rich, creamy tub of frosting to finish the cake beautifully.

How to Assemble
1. Preheat and Prep
Start by setting your oven to 350 degrees F. Grease your cake pans well so nothing sticks.
2. Make the Batter
Combine your cake mix, eggs, water, and mayonnaise. Mix until everything is smooth and glossy.
3. Bake the Layers
Divide the batter evenly. Bake for about 30 to 35 minutes. Always check with a toothpick.
4. Cool and Frost
Let the layers cool fully on a wire rack. Frost generously between layers and on top. If you enjoy classic comfort food, try this Golden Corral Dinner Rolls Recipe as a side.
Recipe Success Tips
➡️ Ensure your oven is fully preheated before putting the cake pans inside.
➡️ Do not overmix the batter to keep the cake light and airy.
➡️ Cool the cake completely before adding any frosting to avoid melting.
➡️ Use high-quality mayonnaise for the most authentic and rich flavor results.
How To Store Leftover
Keep your leftover cake in an airtight container on the counter. It stays fresh and moist for up to three days.
You can also freeze individual slices wrapped in plastic wrap. Enjoy it later with our Taco Bell Cinnamon Twists Recipe for a fun dessert night.
FAQs about Portillo Chocolate Cake
Does the cake taste like mayonnaise? No, the mayonnaise just adds moisture and richness, making the crumb tender without any savory flavor at all.
Can I use oil instead? You could, but mayonnaise contains both oil and eggs, which creates a much better structure and texture for this specific copycat recipe.
How do I know it is done? Insert a toothpick into the center of the cake. If it comes out clean with just a few crumbs, it is ready.
Nutritions
Serving Size: 1 slice | Calories: 450kcal | Fat: 22g | Carbohydrates: 60g | Protein: 4g
Conclusion
Making this cake is a wonderful way to treat your family. It is easy, affordable, and always a huge crowd favorite.
Enjoy your baking time in the kitchen. Come back soon for more delicious recipes like our Rachael Ray Banana Bread Recipe.

Portillo Chocolate Cake Recipe
Ingredients
- 1 box chocolate cake mix
- 1 bottle mayonnaise adds incredible moisture
- 3 large eggs
- 1 cup water
- 1 container chocolate frosting
Instructions
- Preheat your oven to 350 degrees F.
- Grease two round cake pans well.
- Mix the cake mix, eggs, water, and mayonnaise in a large bowl.
- Beat the batter until it is smooth and creamy.
- Pour the batter evenly into your prepared pans.
- Bake for 30 to 35 minutes until a toothpick comes out clean.
- Let the cakes cool completely before removing from the pans.
- Frost the top and sides generously with chocolate frosting.













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