Ingredients:
All Purpose Flour (maida) – 2 cups
Baking Powder – 2 tsps
Salt – 1/4 tsp
Yoghurt/Curd – 1/2 cup
Baking Soda – 3/4 tsp
Fine Granule Sugar – 1 1/2 cups
Vegetable/Canola Oil – 1 1/4 cups
Vanilla Extract- 2 tsps
Vinegar – 2 tsps
Milk (at room temperature) – 1 cup
Natural Liquid Food Color – 6 drops each of 3-4 colors or more
Mixing bowls – 3 to 4 (same as the number of colors that you are going to use)
Method:
- Preheat oven to 180 degrees C /350 F.
- Grease and dust a round cake tin of 8″ diameter.
- In a bowl, mix all purpose flour, baking powder and salt. Mix well, keep aside.
- In a small bowl whisk together yoghurt and baking soda. Keep aside. The yoghurt will turn frothy.
- In another large mixing bowl, take sugar and vegetable oil. Beat thoroughly until well combined.
- Add vanilla extract. Mix well.
- Pour the frothy yoghurt and mix gently to combine well using a spatula.
- Fold in half the portion of the flour and half the quantity of milk alternately till all is used up. Mix gently using a spatula. Do not over mix.
- Add vinegar, mix to combine.
- Now divide the batter equally among all the 3-4 mixing bowls. I used 4 colors – Red, Yellow, Green and Blue. Blue color almost baked-out.
- Add 6 drops (or be more generous) of each color into the bowl. Whisk gently using a spoon until well combined. You now have the colored batter – as I said, I had 4 colored batters.
- Place the cake tin on a surface.
- Slowly pour one colored batter at a time into the cake tin – I poured blue colored batter. Allow it to spread.
- Now pour another colored batter into the centre of the previously poured batter. – I used Pink batter.
- Next pour the third colored batter into the centre of the second batter – I poured Yellow into Pink.
- Finally the fourth colored batter into the third colored batter – I poured Green into Yellow.
- Carefully, without shaking the cake tin much, place it in the oven.
- Bake for approx. 50 minutes or until the skewer inserted into the centre of the cake comes out clean.
- Remove from oven, place the tin on a wire rack and allow it to cool.
- Unmould, cut and serve.