Make the dough

• Warm the milk and combine it with the yeast and sugar in a bowl.
• Add the flour, egg, melted butter and salt, then knead into a smooth dough.
• Cover and let the dough rise until doubled in size.

Roll out and fill

• Roll the dough into a large rectangle.
• Spread the softened butter over the surface.
• Sprinkle evenly with the brown sugar and cinnamon.

Shape the hearts

• Roll the dough up into a log and cut it into slices.
• Shape each slice into a heart and place them in the baking dish.
• Let them rise again until puffy.

Bake

• Bake the rolls until golden and cooked through.

Frost and serve

• Whisk the cream cheese, powdered sugar, softened butter and vanilla into a smooth frosting.
• Spread the frosting over the warm rolls and serve.