Eggless Marble Cake - Egg Substitute: Milk and Yogurt

Ingredients for 6x2 inch pan  (Small Cake)

Dry Ingredients

All purpose flour (APF) - 1 cup + 1 tbsp 

Baking Powder - 1 tsp 

Baking Soda - 1/4 tsp

Salt - 1/4 tsp

Sugar - 2/3 cup

Wet Ingredient

Vegetable Oil or Unsalted Butter - 1/4 cup

Yogurt - 1/2 cup

Milk (preferably room temp) - 1/8 cup

Vanilla Extract - 1/2 tsp

Cocoa Sauce

Hot Water - 2 tbsp

Cocoa Powder (Unsweetened) - 2 tbsp

Method

1. Pre-heat oven at 350F/180C. Line the pan with parchment paper and grease it lightly
2. Prepare cocoa sauce 
1. Mix cocoa powder to hot water and stir well and keep aside.
3. Preparing vanilla batter
1. Mix all the ingredients under dry ingredients and keep it aside
2. In a separate bowl hand whisk all the wet ingredients. 
3. Fold in dry ingredients to the wet ingredients and mix gently.
4. Divide the above batter in two equal parts. 
5. One part is vanilla batter 
4. Preparing chocolate batter
1. To the second part add cocoa sauce and mix well.
5. Pouring the batter
1. Pour vanilla and chocolate batter alternatively OR
2. You can pour vanilla batter first and and chocolate batter on top of it. 
6. Bake the cake in the middle rack of your oven.
1. It takes around 30-40 minutes to bake. 
2. Check for doneness at 30 minutes with a toothpick. 
7. Cool the cake on a wire rack for 10 minutes before slicing it.

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Here is the breakdown of ingredients for 8x8 baking pan. 

Dry Ingredients

All purpose flour (APF) - 2 cup + 2 tbsp 

Baking Powder - 2 tsp 

Baking Soda - 1/2 tsp

Salt - 1/2 tsp

Sugar - 1 -1/3 cup

Wet Ingredient

Vegetable Oil or Unsalted Butter - 1/2 cup

Yogurt - 1cup

Milk (preferably room temp) - 1/4 cup

Vanilla Extract - 1 tsp

Cocoa Sauce

Hot Water - 4 tbsp

Cocoa Powder (Unsweetened) - 4 tbsp