1. Sprinkle yeast in 1/4 cup warm (not hot) water. Let stand 5-10 minutes to soften. 2. In mixing bowl, combine 1/4 cup sugar, 1/4 cup softened margarine, salt and scalded milk. Cool to lukewarm. 3. Whisk in eggs, orange juice and yeast. Gradually add flour to form a stiff dough. You may not need all the flour. 4. Knead on floured surface until smooth and satiny. This should take 3-5 minutes. Place in greased bowl, turning to grease all sides. Cover and let rise in warm place until light and doubled in size, about 1 hour. 5. Cream 1/2 cup margarine; add 1 cup brown (or white) sugar and orange peel. Set aside. 6. Roll out half of dough on floured surface to a 12 x 8-inch rectangle. Spread with half of orange filling; sprinkle with 1/2 of chopped nuts. Start with 12-inch side and roll in a jelly-roll fashion. Cut into twelve 1-inch slices. 7. Arrange slices 1 inch apart on bottom and sides of well-greased 2-quart casserole or oven-proof mixing bowl. Place remaining slices in center of dough. Repeat with remaining dough to make second cake. 8. Cover and let rise in warm place until light and doubled in size, about 45 minutes. 9. Bake in preheated 350-degree oven for 35 minutes or until golden brown. Invert immediately onto wire rack; let cool.