In a bowl, combine the first four ingredients. In anther bowl, combine the oats, apricots, butter and boiling water; stir until butter is melted. Cool for 5 minutes. Stir in eggs, milk and orange zest if desired. Stir into dry ingredients just until moistened.
Fill greased or paper-lined muffin cups two-thirds full.
Bake at 400° for 20-22 minutes or until a toothpick comes out clean. Cool for 5 minutes before removing to wire racks.