3 cups all-purpose flour
1/2 teaspoon baking soda
2 tablespoons white sugar
1/2 cup raisins
1 egg, beaten
1 cup buttermilk
2 tablespoons margarine, melted
Preheat the oven to 350 degrees F (175 degrees C). Grease a cast iron skillet.
In a medium bowl, mix together the flour, baking soda and sugar. Toss the raisins with the flour mixture until coated. Add the egg, buttermilk, and melted margarine. Stir until all of the dry ingredients are moistened. Turn the dough out onto a floured surface and knead for a few quick turns just to even out the dough. Handle the dough as little as possible. Pat into a flat circle, and place into the prepared pan.
Bake the bread for 40 to 45 minutes in the preheated oven, or until the edges are golden.