蛋黄酱的巧克力蛋糕 Chocolate Mayonnaise Cake

Ingredients:

Cake: 
2 1/4 cups      All-Purpose Flour 
   3/4 cup        Unsweetened Cocoa Powder 
1 3/4 tsp         Baking Powder 
   1/4 tsp         Baking Soda 
   1/2 tsp         Salt 
       3 nos        Large Eggs (50 g each) 
1 1/3 cups      Brown Sugar 
1 1/2 cups      Lukewarm Water 
1 1/4 cups      Mayonnaise (not low-fat) 
       1 tbsp       Vanilla Extract

Frosting and assembly: 
3 cups          Heavy or Whipping Cream
5 tbsp           Confectioners Sugar
1 1/2 tsp       Vanilla Extract

Method:
1)   Preheat oven to 325°. Lightly coat cake pans with nonstick spray and line bottoms with parchment paper; spray again. 
2)  Whisk flour, cocoa powder, baking powder, baking soda, and salt in a medium bowl. 
3)  Using an electric mixer on high speed, beat eggs and sugar until pale, about 4 minutes. 
4)  Add mayonnaise and vanilla and beat until just combined.
5)  In low speed, add dry ingredients in 3 additions, alternating with 1⅓ cups lukewarm water in 2 additions, beginning and ending with dry ingredients. 
6)  Bake cakes, rotating halfway through, until a tester inserted into the centers comes out clean, 25-30 minutes. 
7)  Transfer pans to wire racks and let cool 20 minutes before turning out onto racks. Let cool completely.
8)  Beat heavy or whipping cream, sugar & vanilla extract as frosting and assembly the cake.