This cake is a combination of flan (custard) and purple yam.
Caramel Syrup:
3/4 cup sugar
1/4 cup water
Flan:
Whisk together:
4 whole eggs
1 can condensed milk
11/2 cups fresh milk
1 tsp vanilla extract
Sponge Cake:
5 egg yolks
1/4 cup sugar
1/4 cup oil
1/4 cup milk
1 tsp vanilla extract
2 tsps ube extra
1 cup all-purpose flour
1 tsp baking powder
1/2 tsp salt
Mix and beat all wet ingredients. Add flour, baking powder and salt. Blend with spatula and set aside.
Meringue:
Beat 5 egg whites with 1 tsp lemon juice or until frothy. Add a drip of ube extract.
Gradually add 1/3 cup sugar to egg whites, beating until stiff peaks form. Mix the meringue with the flour mixture.
Assembly:
Pour the flan mix.
Then, pour the sponge cake mixture by a cup, gradually and slowly. It will floats around the flan mixture.
Bake at 350F in water batch for 1 hr.
Once done, let it cool for at least 4 hrs in the refrigerator.
Using a knife, slice the cake around the pan to slowly release it from the pan. Flip the pan and transfer it in the serving cake platter.
Slice and enjoy!