Easy Birthday Cake with Whipped Cream Frosting

1. Beat egg whites until stiff in a mixer

2. Add egg yolks and sugar and beat until homogeneous and fluffy

3. Gently fold in the sifted flour and water gradually, mixing from the bottom up

4. Add baking powder and mix to incorporate

5. Pour the batter into a pan lined with parchment paper without greasing

6. Bake in a preheated medium oven until a toothpick inserted comes out clean, about 30-40 minutes, and do not open the oven before 30 minutes to prevent the cake from collapsing

7. Let the cake cool completely

Frosting and assembly

1. Beat the heavy cream until stiff

2. Add milk powder and beat until combined

3. Soak the cake with milk

4. Frost the cake with the whipped cream mixture