1. Stir flours together. In large bowl, combine 1-1/2 cups flour mixture, brown sugar, yeast and salt. 2. Combine onion soup mix, water, milk, 2 tablespoons margarine and caraway seeds in saucepan. Stir and heat until warm (120-130 degrees). 3. Gradually add liquid to combined dry ingredients, beating at medium speed; scrape bowl now and then. Add 3/4 cup flour; beat at high speed for 2 minutes. Stir in enough additional flour to make a soft dough, about 2 to 3 cups. 4. Cover and let rise in warm place until doubled; 40-50 minutes. 5. Stir dough down, turn into well greased 2-quart casserole, brush with melted butter or margarine. Let rise again until doubled; 20-30 minutes. 6. Bake in preheated 350-degree oven for 50 to 60 minutes, or until done. 7. Remove from dish and brush crust with melted margarine. Cool completely on wire rack.