Let’s dive into the process of crafting these fluffy delights, a journey that’s as rewarding as the destination itself:

1. Preheat your oven to 320°F (160°C) and line a muffin tin with paper liners.
2. In a small saucepan, melt the cream cheese, butter, and milk over low heat, stirring until smooth. Allow this mixture to cool.
3. In a separate bowl, beat the egg whites with the cream of tartar until soft peaks form. Gradually add the sugar, continuing to beat until stiff peaks form, much like the meringues my grandmother used to make.
4. Mix the egg yolks into the cooled cream cheese mixture, then add the vanilla extract.
5. Sift the cake flour, cornstarch, and salt together, gently folding them into the cream cheese mixture. This step reminds me of the care needed to fold laundry—a task done with love.
6. Carefully fold in the egg whites, one-third at a time, until the batter is smooth and well combined.
7. Pour the batter into the prepared muffin tin, filling each liner about three-quarters full.
8. Bake for 25-30 minutes, or until the tops are lightly golden and a toothpick inserted into the center comes out clean.
9. Once done, turn off the oven and leave the cupcakes inside for about 10 minutes to prevent sudden deflation, much like how we ease into our weekends at home.
10. Remove from the oven and allow to cool completely before dusting with powdered sugar if desired.