In a large mixing bowl, whisk together the all-purpose flour, granulated sugar, salt, and active dry yeast. Create a well in the center and pour in the warm milk, melted butter, and egg. Stir until a shaggy dough forms.

Transfer the dough onto a floured surface and knead for about 5-7 minutes until smooth and elastic.

Place the kneaded dough in a greased bowl, cover with a damp cloth, and let it rise in a warm area for about 1 hour or until doubled in size.

Punch down the dough gently, then roll it out into a 16x12 inch rectangle about 1/4 inch thick.

Spread softened butter over the rolled-out dough, then sprinkle brown sugar and cinnamon mixture, adding optional ingredients if desired.

Roll the dough tightly from the long edge into a log, slice into 12 equal pieces, and place into a greased baking pan.

Cover with plastic wrap and let them rise for another 30 minutes before preheating your oven to 375°F.

Bake for 20-25 minutes until golden brown, then let cool for a few minutes before serving warm.