add the buttermilk and eggs.
Make a well in the center of the flour-butter mixture
Mix until the mixture has a sand-like consistency.
Cut the butter into small pieces with a knife, and add the butter to the flour-mixture.
Stir until the liquids are fully incorporated.
In a food processor or in a large bowl, combine the whole wheat flour, white flour, wheat germ or oats, baking powder, baking soda, brown sugar, and salt.