Preheat the oven to 400°.

Grease a 12-cup muffin pan and set aside.

For fans: Whisk together the flour, salt, baking powder, cream of tartar, and sugar.

Cut in the shortening until the mixture resembles coarse crumbles.

Add the milk and stir.

Turn out onto a lightly floured surface and knead gently for a half minute.

Roll the dough about ¼ inch thick into a rectangle about 8 × 24 inches.

For filling: Spread the melted butter evenly on the dough.

Mix together the sugar and cinnamon and then sprinkle the mixture evenly over the buttered dough.

Cut the dough into 4 long strips, each about 2 inches wide and 24 inches long.

Stack the 4 strips on top of one another and then cut the stack into 12 equal pieces, each about 2 inches wide.

Turn the pieces on their sides in greased muffin cups so each treat fans out.

Bake for 12 minutes or until golden brown.