Lay out Eggs and measure out milk - 30 minutes before starting cake.
You may also want to lay out one Stick of butter and Cream Cheese for Icing at this time.
Preheat oven to 350-Evenly spray; two round 9 in. cake pans with oil, layer with round parchment paper, then lightly spray parchment paper. This is the best way to ensure the cake will come out of pans.
Puree about 1 1/2 lbs. of Strawberries with blender or food processor; then strain any excess juice off through a mesh strainer. (Discard juice or Drink :)) Add 3/4 teaspoon of Strawberry kool aid to the strawberries. *There will be exactly 1/4 teaspoon left in the packet- Save For Frosting.
Using your stand or handheld mixer with whisk attachment; Whisk Softened Butter and Sugar over high speed for about 2-3 minutes. Should look light and Fluffy.
Add Vanilla and Egg Whites; Whisk for another 2-3 minutes on high.
In a separate bowl mix together Flour, Baking powder, Baking Soda and salt.
Slowly add to your batter and mix on low until well combined. ( you may Need to stop to scrape the sides.)
Slowly add milk and sour Cream over low speed and mix until combined-stopping to scrape sides.
Mix in Strawberries till just Combined over low speed. This will make the cake a very rich pink color.
Pour into prepared Pans and bake 30-35 minutes; Remove from oven and allow to cool for at least 20 minutes on wire rack before removing.
Make sure cake is completely cooled before Frosting.