Vapor Cake (Bolu Kukus)

Materials : 

200 grams of egg whites

1/4 teaspoon of salt

1/4 teaspoon cream of tartar

50 grams of sugar

85 grams of cake flour

15 grams of cornstarch

25 grams of melted margarine

100 ml Sarsaparilla soda

50 grams of chocolate chips

Procedure :

1. Beat the whites of eggs, salt, and cream of tartar until half fluffy. Add the sugar little by little and mix until fluffy.
2. Add the flour and cornstarch while sifted and mixed evenly.
3. Enter the margarine mixture and sarsaparilla soda, stir evenly.
4. Pour into muffin tins and put the paper cup below it.
5. Put under fire oven with a temperature of 180 degrees Celsius and do it in 17 minutes until cooked.