Heat oven to 400. Grease dozen muffin cups. Boil sugar, water and cinnamon stick until sugar dissolves. Add apricots and poach until tender (3-5 minutes, depending on the apricots). Drain, reserving quarter c of poaching water if using evaporated skim milk. In large bowl mix together flour, sugar, baking powder, salt, nutmeg, and cinnamon. In a small bowl, whisk together milk (and reserved poaching water, if using evaporated milk--this gives a delicate apricot flavor to the muffin itself), butter, egg, and vanilla. Add wet ingredients to dry, and combine in as few strokes as possible. Fold in apricots and chocolate. Fill each muffin cup half to 0.75 full. Bake until golden brown, 15 to 20 minutes.
This recipe would work with many additions besides apricots and white chocolate. Dragonwagon suggests peach and nut, ginger-pear-walnut, banana-nut, cranberry-nut, date-nut and pina colada.