I've never personally tried this one but I've been told it's foolproof.
2 cups white flour
2 cups whole wheat flour
1/2 cup sugar
2 tsp. baking soda
1 tsp. salt
4 tbsp. butter, chilled
1 cup raisins
1 1/2 cups buttermilk or plain yogurt
Heat the oven to 350 degrees. In a bowl, combine the dry ingredients.
Cut in the butter until it is pea-sized. Stir in the raisins and buttermilk or yogurt. Turn the dough onto a floured surface, knead 1 minute, and shape into a disk.
Cut an "X" in the top and bake on a greased baking sheet for 45 to 50 minutes.
Makes one 8-inch-wide loaf.