2 3/4 cups all-purpose flour
1/2 cup sugar, divided
1 (.25 ounce) package active dry yeast
1 teaspoon salt
1/8 teaspoon baking soda
1/2 cup fat-free plain yogurt
1/2 cup fat-free milk
1/4 cup water
3 tablespoons butter or stick margarine, divided
3/4 cup chopped pecans, toasted
1/4 cup packed brown sugar
1 tablespoon ground cinnamon
1 egg white, lightly beaten
ICING:
1/2 cup confectioners' sugar
2 teaspoons fat free milk
1/4 teaspoon vanilla extract