Marble Cake Ingredients: Unsalted Butter: 100 gm (Half Cup) Caster Sugar: 100 gm (Half Cup) All-Purpose Flour (Meda): 90 gm (1 Cup) Cocoa Powder: 10 gm (1/4th Cup) Milk: 1/4th Cup Caster Sugar: 1 Tea-Spoon Egg: 2 Baking Powder: 1/2 Tea-spoon Vanilla Esse