Dissolve yeast in warm water.

Add sugar and shortening to the yeast mixture.

Add salt, egg, and flour to the mixture.

Beat until smooth.

Form the mixture into a dough.

Refrigerate the dough overnight.

Remove dough from refrigerator.

Roll the dough into a 1/2-inch thick piece.

Cut the dough into small circles.

Brush melted butter on one edge of each circle.

Fold each circle over and press edges together to seal.

Place rolls in a greased pan.

Let rolls rise.

Bake at 400°F (200°C) for 10-14 minutes, or until golden brown.