Icelandic Three-grain Brown Bread

Description
This soda bread recipe comes from an Icelandic farmhouse. It's dark,delicious, and full of wholesome grains. It's also excellent toasted.
 * Makes 2 loaves

Ingredients

 * 4 teaspoon baking soda
 * 1 cup dark rye flour
 * 2 cup all purpose flour
 * 1 teaspoon salt
 * ½ cup brown sugar, packed
 * 2½ cup buttermilk
 * 2 cup whole wheat flour
 * 1 cup rolled oats
 * ½ cup butter, softened

Directions

 * 1) Preheat the oven to 350°F.
 * 2) Grease two 9x5x3 inch loaf pans.
 * 3) In a large bowl, cream together the brown sugar and butter.
 * 4) Mix the rolled oats,rye flour, whole wheat flour, all purpose flour, salt, and baking soda together in another bowl, then add the creamed mixture along with the buttermilk.
 * 5) Mix until well blended.
 * 6) Divide the mixture between the two pans and smooth the tops.
 * 7) Bake 1 hour or until a wooden skewer inserted in the center comes out clean.
 * 8) Turn out of pans and cool on racks.