Beat eggs in large mixing bowl with paddle attachment for 4 minutes. Do not skip this step!
Add sugar, and continue beating for another 4-5 minutes until light and fluffy.
Add vanilla and stir on low until just combined
In a separate bowl, sift together dry ingredients. Add to eggs and sugar on low speed until just combined.
In a saucepan, heat milk and butter on low heat just until butter is melted. Add to batter, beat just until combined.
Pour into two greased and floured 8" round cake pans.
Bake at 350 until the middle springs back when touched,(40 mins ) or a toothpick inserted in the center comes out clean. Remove from oven and let stand in pans for 10 minutes. Then turn out onto wire cooling racks and cool completely.
Hint: Cakes are close to being done when you start to smell them.