Preheat oven to 350 degrees F. Generously spray a 9 x 13 inch pan with nonstick spray.
In a small bowl, whisk together flour, baking soda, baking powder and salt. Set aside. In a large bowl, or using a stand mixer, cream together butter and sugar until light and fluffy. Add in the eggs, sour cream and vanilla. Scrape down the sides of the bowl.
Add in the flour and milk. Mix until combined. Bake cake for 35-38 minutes until top is slightly golden and a toothpick inserted in center comes out clean. Allow cake to cool before assembly.
For The Strawberries
In a small bowl, combined strawberries, one tablespoon lemon juice and 2 tablespoons granulated sugar. Allow to sit while the cake bakes.
For The Whipped Cream
In a cold bowl, using a whisk (or whisk attachment) whisk whipped cream until thick. Add in the vanilla and the powdered sugar. Whisk until combined.
Once cake is cool, spread the whipped cream over the top. Top with the strawberries and enjoy!