Lightly brush puto molds with melted butter. Bring to a boil the water in a steamer.

Beat the egg yolks, add the condensed milk. Whisk until the texture becomes smooth. Add the vanilla extract. Stir all the ingredients until well blended.

Fill each mold a third with the custard mixture. Arrange in a steamer. Wrap steamer cover with clean kitchen towel. Steam for 5 minutes. Remove from the steamer and let it cool.

In a separate bowl, sift all purpose flour, baking powder, and salt. Mix together until well combined.

In a large bowl, beat the egg whites until frothy. Add gradually 3/4 cup sugar. Beat until stiff.

Carefully fold the egg whites mixture to the flour mixture. Stir together until well blended. Do not over mix.

Pour puto batter into molds and continue steaming for 8 to 10 minutes. Do not over steam.

Remove from heat. Take the molds out of the steamer. Let it cool. Gently remove puto flan from molds.

Serve and enjoy! 😉