1 c. whole wheat flour
1 c. all-purpose flour
1/4 c. sugar
2 tbsp. baking powder
1/2 tsp. cream of tartar
1/2 tsp. salt
1/2 c. butter, softened
3/4 c. buttermilk

Heat oven to 350 degrees. Mix all ingredients, except butter and buttermilk, in large bowl. Cut in butter until mixture resembles fine crumbs. Stir in the buttermilk until dough leaves side of bowl and rounds up into a ball. Turn dough onto well floured surface. Knead lightly 10 times. Roll dough 1/4 inch thick. Cut with floured 1 3/4 inch biscuit cutter. Place about 1/2 inch apart on ungreased cookie sheet. Bake 10 to 12 minutes until light brown. Reduce oven to 300 degrees. Cut hot biscuits in half with sharp knife. Place, cut side up, on ungreased cookie sheet. Bake 15 minutes until crackers appear dry. Store in air-tight container.