Kevin, they had something called salt-rising bread that makes awesome toast.. I'm wondering if that's what you remember? In case you or anyone else wants to try:
Salt-Rising Bread
1 medium potato -- peeled and thinly sliced
2 cups boiling water
2 tablespoons cornmeal
1 tablespoon sugar
1 1/2 teaspoons salt -- divided
2 packages dry yeast
1 cup milk -- scalded
7 cups unsifted flour
2 tablespoons cooking oil
1/4 teaspoon baking soda
STARTER: To make the starter place the potato slices in a bowl.
Pour the boiling water over the potato slices. Stir in cornmeal,
sugar and 1/2 teaspoon salt. Set the bowl in a warm place (such
as gas oven with pilot light on or an electric oven with the
interior light on), not covered for about 24 hours to develop
the starter.
DOUGH: Strain the starter mixture and discard the potato. Add
enough water to make 1 3/4 cups of liquid. Add dry yeast and
stir to dissolve. Stir in 3 cups of the flour, milk, oil,
1 teaspoon salt and the baking soda. Beat well. Cover and let
rise in a warm place until very light, about 1 hour. Stir in
enough of the remaining flour to make a moderately stiff dough.
Turn dough out onto a lightly floured surface and knead dough
until smooth and elastic, about 6 to 8 minutes. Divide dough
in half. Cover and let rest 10 minutes. Shape into 2 loaves.
Place in greased 9-by-5-by-3-inch loaf pans. Let rise in a
warm place until nearly doubled, about 45 minutes. Bake in a
375-degree oven for 30 to 35 minutes or until loaves sound
hollow when rapped with the end of wooden spoon. Turn out of
pans onto rack to cool. Makes 2 loaves.