3. Whisk in cream cheese, egg, egg yolk, salt, sugar, baking soda in a bowl of stand mixer,
4. Put oil, buttermilk, vanilla and mix well.
5. Add flour and mix for 2 minutes.
3. Whisk in cream cheese, egg, egg yolk, salt, sugar, baking soda in a bowl of stand mixer,
4. Put oil, buttermilk, vanilla and mix well.
5. Add flour and mix for 2 minutes.