In a large bowl, dissolve yeast in 1/2 cup warm water. Add brown sugar, caraway, oil, salt and remaining water; mix well. Stir in rye flour and 1 cup all-purpose flour; beat until smooth. Add enough remaining all-purpose flour to form a soft dough. , Turn onto a floured surface; knead until smooth and elastic, 6-8 minutes. Place in a greased bowl, turning once to grease top. Cover and let rise in a warm place until doubled, about 1 hour. , Punch dough down; divide in half. Shape each half into a ball; place in 2 greased 8-in. round baking pans or ovenproof skillets. Flatten balls to a 6-in. diameter. Cover and let rise until nearly doubled, about 30 minutes. Bake at 375° for 25-30 minutes or until golden brown.