Cheddar Pepper Biscuits

adapted slightly from Joy the Baker

3 c flour
2 tbsp. sugar
4 1/2 tsp. baking powder
3/4 tsp. cream of tartar
3/4 tsp. salt
1/2 tsp pepper
1/2 c shortening
1/4 c butter, chilled & cubed
1 egg
3/4 c buttermilk
3/4 c grated longhorn cheese (or sharp cheddar)

1/4 c whole milk
fresh ground black pepper

Combine the dry ingredients in a large bowl, mix thoroughly. Cut in the shortening and butter. Stir in the cheese. Whisk the egg and buttermilk in a separate bowl, add slowly to the biscuit mixture. Knead for 5 minutes then roll out to 1" thick on a floured surface. Cut out biscuits and place on an ungreased cookie sheet.
In a small bowl combine the whole milk and a bit of fresh ground black pepper. Brush over the tops of the biscuits. Bake at 425 degrees for 12-15 minutes.