Mix the 2 tablespoons sugar with cinnamon.
Coarsely chop cranberries with knife.
Generously butter a 12 cup muffin pan.
In a small saucepan or skillet, melt butter; set aside to cool.
In a medium mixing bowl, with a fork, thoroughly stir together the flour, baking powder, salt and sugar.
In a small mixing bowl beat egg enough to combine yolk and white; beat in milk and melted butter.
Add to flour mixture; stir quickly and lightly just until flour is almost dampened.
Add cranberries; lightly stir in; do not beat.
Using a large metal spoon, spoon batter into prepared muffin-pan cups, filling each slightly more than half full.
Sprinkle 1/2 teaspoon cinnamon-sugar over batter in each cup.
Bake in a preheated 375 degree oven until golden brown and a cake tester inserted in the center comes out clean - 20 to 25 minutes.
If muffins are to be held 10 to 15 minutes before serving, tip them in the pan to prevent steaming and keep in a warm oven.
To reheat cold muffins, place them in a covered pan or a closed paper bag in a preheated 350 degree oven for 10 minutes.