This recipe is one my mother made during my childhood. I am not sure where it came from, but it is my favorite roll, especially the glaze. I am also not sure why it is called coffee cake. It is more of a sweet roll and it's orange, which gets my vote any time.
I have been trying lots of new sweet roll recipes lately, and this is still my favorite. It can't be beat.
Soften yeast in warm water in mixing bowl. Stir in 1/2 cup sugar, salt, eggs, sour cream and 12 T. butter into the yeast mixture. Gradually add flour to form a soft dough, beating well after each addition. Knead for a few minutes if using the mixer. Knead for 8 minutes if doing by hand. Cover and let rise in warm place until light and doubled, about 2 hours.
Combine 1 1/2 cups sugar, 1 1/2 cups coconut and orange zest. Knead dough on well-floured surface about 15 times. Roll out half of dough to a 12-inch circle. Brush with 2-3 tablespoons melted butter. Sprinkle with half of sugar-coconut mixture. Cut into 12 wedges. Roll up, starting with wide end and rolling to point. Repeat with remaining dough. Place rolls, point side down, in 3 rows in a well-greased pan. Cover and let rise in warm place until light and doubled, about 1 hour. Bake at 350 degrees F for 25-30 minutes or until golden brown. Leave in pan. pour glaze over hot coffee cake. Sprinkle with 1/2 cup coconut. Serve warm or cold.
GLAZE: Combine orange glaze ingredients in saucepan. Boil for 3 minutes, stirring occasionally.