Chocolate Cake with Chocolate Buttercream Frosting

*This version is without butter. Preparation time : 25 mins Baking time : 35 mins Serves : 8 to 12 INGREDIENTS  – DRY 2 cups (250gm)   All-purpose flour 2 cups (400gm)   caster sugar 3/4 cups (75gm)  cocoa powder (unsweetened) 2 tsp                      baking soda 1 tsp …