Makes 1 large loaf:
* 1 cup starter
* 1/2 cup milk
* 1 egg yolk
* 3 TBSP butter, softened
* 3 TBSP brown sugar
* 3 TBSP white sugar
* 2 teaspoon salt
* 4 cups flour
* yeast, if needed

Mix these, spread over dough on final rise:
* 2 tablespoons butter, softened
* remaining egg (white)
* water

Rise 1 hour in warm, wet place
Bake at 400 for 15 minutes, spin once