Preheat oven to 300 degrees, Grease and flour a Bundt pan; set aside
In a mixing bowl, cream butter, sugar and 6 egg yolks.
Next, one at a time, add sour cream, sifted flour, and baking soda into the creamed butter mixture. Beat well.
Add egg whites and beat with a whisk.
Pour mixture into the prepared Bundt Pan and Bake for 1 ½ hours. Allow to cool for about 10-12 minutes before inverting onto a cake plate. Sprinkle some powdered sugar onto your cake before serving.
Recipe by Clean and Scentsible at https://www.cleanandscentsible.com/sour-cream-pound-cake/