I find that mayonnaise makes a very moist cake , add espresso powder and voila....you've got a moist, chocolate cake to die for. Add the malted milk frosting and you've got a light and airy topping! The chocolate curls make this a pretty presentation. It almost tastes like my cappuccino cake, but w/ a stronger coffee flavor. You decide which 1 is the best one, lol.
Heat oven to 350. Spray 2-9" round cake pans w/ cooking spray. In lg bowl, beat cake mix, 1-1/4 cups water, mayonnaise, eggs and coffee powder.
Beat on low for 1 min. Beat on medium for 2 mins. Divide evenly into pans. Bake between 22-24 mins, or when a toothpick inserted in center of cakes comes out clean.
Cool 7 mins, and then transfer to cooling racks. In a small pot, combine 3/4 cup water and malted milk powder. Place over med-high heat. Cook, stirring constantly until it starts to boil. Transfer mix to lg bowl. Add powdered sugar to bowl and then add vanilla. Beat until well mixed and cooled. Add butter and on medium-low beat until mix starts to combine, ( It will look a little lumpy, that's o.k.,) Beat until fluffy, ( about 5-8 mins.) Place 1 cake layer on plate and spread w/ 1 cup frosting. Top w/ 2nd layer Spread the top and sides w/ remaining frosting. Using a potato peeler, scrape it down the chocolate bar to make chocolate curls. Garnish top of cake w/ the curls.