In a large bowl, mix together the milk, melted butter, instant dry yeast, and sugar.
Add the egg, wheat flour, and salt to the mixture, and stir with a spatula until a soft, sticky dough forms.
Using two spoons, drop portions of the dough into a greased baking pan.
Cover the pan and allow the dough to rise until it has doubled in size.
Once risen, brush the top with a mixture of egg yolk and milk.
Bake in a preheated oven at 350 degrees Fahrenheit for 45 minutes.
