Thai Tea Cupcakes

Cupcakes
15 regular cupcakes / 350 degree oven

1/2 cup (1 stick) unsalted butter, room temperature
1-1/2 cups sugar
2 cups all-purpose flour
1/2 teaspoon baking powder
1/2 teaspoon baking soda
1/8 teaspoon salt
1 cup evaporated milk
1 teaspoon vanilla
4 large egg whites

1. Beat butter on high until soft, about 30 seconds.
2. Add sugar. Beat on medium-high until light and fluffy, about 3 minutes.
3. Whisk together flour, baking powder, baking soda, and salt in a bowl.
4. Measure out vanilla and milk together.
5. Add about a third of the flour to the butter/sugar mixture and beat to combine.
6. Add about one half the milk mixture and beat until combined.
7. Repeat above, alternating flour and milk and ending with the flour mixture. Transfer to a bowl. Clean mixer bowl well and dry thoroughly.
8. Whip egg whites until soft peaks form.
9. Mix in about a half cup of egg whites in to the batter, then fold the batter into the egg whites, gently until all egg whites streaks are gone.
10. Scoop into cupcake papers about two thirds full.
11. Bake for 20-25 minutes until a cake tester comes out clean.