2/3 cup butter or margarine, softened
1 1/4 cups sugar
2 eggs
1/2 cup plain yogurt
1/2 cup orange juice
1 tablespoon grated orange peel
2 1/2 cups all-purpose flour
1/2 teaspoon baking powder
1/2 teaspoon baking soda
1/2 teaspoon salt
GLAZE:
1/2 cup confectioners' sugar
2 teaspoons orange juice