2 c Rye flour 1 tb Dry yeast 1/2 c Warm water 1 ts Salt 2 tb Vegetable oil 2 tb Cider vinegar 1/2 c Unbleached white flour In a deep bowl, measure our the rye flour. Make a well in the centre. Dissolve the yeast in the water & add to the bowl. Add salt, oil & vinegar. Stir vigorously. Add the white flour. Knead well till the dough is pliable. Form into a round bread. Use a brush to oil the surface & set in a 9" round pan. Allow to double in size. Preheat oven to 350F & bake for 1 hour 15 minutes.