In a bowl combine warm water, milk, yeast and sugar. Let sit until foamy.
In a bowl combine flour and salt.
Add in butter and rub into flour with your fingers. It will form crumbs.
Mix in yeast mixture and 1 egg.
Knead until smooth and elastic. Dough will be slightly sticky.
Allow dough to rise for 1 hour or until doubled.
Divide dough into 8 equal pieces and form each into a ball.
Place on a parchment paper lined cookie sheet.
Cover loosely with plastic wrap sprayed with non stick spray and allow to rise for about 1 hour.
Brush tops with remaining beaten egg and sprinkle with poppy seeds or sesame seeds if desired
Bake at 400 degrees for about 15 minutes or until golden brown