Chocolate Mayonnaise Cake has been a favorite dessert in our home for years. Before starting my Trim Healthy Mama journey, I usually made it with a boxed cake mix and store-bought mayonnaise. It was easy, familiar, and always disappeared quickly at birthdays, family dinners, and weekend gatherings.

After changing the way I bake, I wanted to recreate that same rich, moist chocolate cake with ingredients that fit better into a THM lifestyle. This version keeps the classic flavor and tender crumb people love, while using low-carb, on-plan ingredients that many Trim Healthy Mama bakers already keep in the pantry.

Chocolate Mayonnaise Cake is one of those old-fashioned desserts that often shows up at family picnics, church potlucks, cookouts, and special occasions across the United States. It is simple, dependable, and deeply chocolatey. The mayonnaise may sound unusual if you have never baked with it before, but it helps create a soft, moist cake without making the finished dessert taste like mayonnaise.

One of the best things about this low-carb Chocolate Mayonnaise Cake is how practical it is. The ingredients are simple, the method is straightforward, and the finished cake works well for celebrations or everyday dessert. Baking has always been one of my favorite things to do, and chocolate cake is the dessert I reach for most often. This recipe brings together that classic chocolate cake experience with a healthier ingredient list that still feels special.

This cake was a real crowd pleaser with our family, friends, and even the neighbor kids. It has the kind of texture and flavor that makes it feel like a true celebration cake. It also works beautifully as cupcakes, which makes it a great option for parties, lunchboxes, potlucks, or any time you want an easy-to-serve chocolate dessert.

Tips For Making Chocolate Mayonnaise Cake

Use fresh mayonnaise for the best flavor and texture. If you make homemade mayonnaise, you can use it in this recipe, but keep the flavor neutral and leave out any savory spices or seasonings.

Let the eggs, mayonnaise, and other wet ingredients come to room temperature before mixing. Room-temperature ingredients blend more smoothly and help the batter come together evenly.

Do not overmix once the dry ingredients and water are added. Mix until the batter is well combined, then divide it between the prepared pans. This helps the cake bake with a soft, even crumb.

For a special finish, frost the cooled cake with whipped chocolate ganache or your favorite THM-friendly chocolate frosting. The rich chocolate flavor of the cake pairs especially well with a creamy chocolate topping.

Making a Dry Chocolate Cake Mix

The dry ingredients in this recipe can be combined ahead of time and stored as a homemade dry chocolate cake mix. This is a helpful shortcut when you want to make dessert quickly. Add the coconut flour, cocoa powder, Baobab Boost Powder, baking soda, baking powder, mineral salt, and xanthan gum to a jar or zip-top bag, then label it with the remaining wet ingredients and baking directions.

This dry mix also makes a thoughtful homemade gift for another Trim Healthy Mama baker. Package it in a clean jar, add a pretty tag with the instructions, and include a note about the wet ingredients needed to finish the cake.

Substitutions and Modifications

Recipes like this often bring up questions about substitutions, especially when one ingredient is missing from the pantry. The following options can work without making major changes to the flavor or texture of the cake.

• If you do not have THM Baobab Boost Powder or THM Oat Fiber:
  • You may use oat fiber, but the cake batter may be slightly thinner.
  • You may use psyllium husks. If using psyllium, heat the water before adding it to the batter and omit the xanthan gum.
• If you do not have xanthan gum:
  • Sprinkle a very small amount of glucomannan across the batter while mixing during the final stage.
  • Bloom 2 teaspoons of gelatin in 1 tablespoon of cold water. Heat the remaining water before adding it to the batter, then beat in the bloomed gelatin while adding the water.
• If you are using a different sweetener:
  • Use the proper conversion for your preferred on-plan sweetener so the cake does not become too sweet or not sweet enough.

Chocolate Mayonnaise Cake Recipe