Super-Moist Chocolate Cake with Chocolate Buttercream Frosting

ChocolaTess Trivia!  Chop!Chop!  Quick history lesson today, because it’s interesting to find out new facts, right?  Then you can pay it forward. 🙂

Chocolate Mayonnaise Cake was a Depression-era (1929-39) dessert that was made popular by Best Foods/Hellmann’s to promote their delicious mayonnaise and it also provided as an economic substitution for butter and milk and most notably, for sour cream, sour milk and buttermilk as well, which were very popular at the time. 
It’s an old cat-in-the-hat baking trick that’s been around longer than cake mixes. 

Speaking of cake mixes, did you know you can substitute mayonnaise for the the oil and eggs in a cake mix?  You can!  You can get more info on that over at Duncan Hines.  They would know! 🙂 The fact of the matter is, this mayonnaise cake is fudgey, rich, moist, and a true classic chocolate dessert that tastes out of this world AMAZING!
Mayonnaise is essentially oil, vinegar, and egg, and while you could just add an extra egg to try and get the same effect, The Kitchn points out that the oil makes the cake tender, the egg helps the batter retain moisture, and the acid in the vinegar really brings out the chocolate flavor. 

Ingredients

• Super-Moist Chocolate Cake
• 2 ounces bittersweet chocolate do not exceed 61% cacao, chopped
• 1 cup unsweetened Hershey's Special Dark Cocoa Powder or regular unsweetened cocoa powder
• 1 3/4 cups boiling water
• 2 3/4 cups all purpose flour
• 1 1/4 teaspoons baking soda
• 1/4 teaspoon baking powder
• 1 cup sugar
• 1 cup dark brown sugar packed
• 1 1/3 cups mayonnaise do not use reduced-fat,fat-free or Miracle Whip, Hellman’s
• 2 large eggs room temperature
• 2 teaspoon vanilla extract
• Chocolate Buttercream Frosting
• 1 1/4 cups butter softened
• 4 1/2 cups powdered sugar
• 3/4 to 1 cup unsweetened cocoa powder for dark frosting, use part Hershey’s Special Dark Cocoa, about 4 tablespoons
• 2 teaspoons vanilla
• 1/4 cup plus 2 tablespoons milk or heavy cream

Instructions

1. Preheat oven to 350°F
2. Butter and flour three 8" diameter cake pans with 1 1/2-inch-high sides, or two 9" pans.
3. In a medium bowl, combine the chopped chocolate and cocoa powder, then whisk in boiling water until chocolate is melted and smooth.
4. Sift flour, baking soda, and baking powder into another medium bowl. Set aside.
5. Using mixer, beat both sugars and mayonnaise in large bowl until well blended, 2 to 3 minutes. Add eggs 1 at a time, beating until well blended after each addition. Beat in vanilla.
6. ............................................

for full instruction please see : www.thebakingchocolatess.com

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