01 - Combine warm milk and yeast in a large bowl. Let stand for 5 minutes until the mixture becomes frothy, indicating the yeast is active.
02 - Add melted butter, granulated sugar, egg, and salt to the yeast mixture. Mix thoroughly. Gradually incorporate flour, mixing until a soft, workable dough forms.
03 - Turn dough onto a lightly floured surface and knead for 6-8 minutes until smooth and elastic. Place in a greased bowl, cover with plastic wrap, and let rise for 1 hour until doubled in volume.
04 - Toss diced strawberries with cornstarch in a small bowl until evenly coated. Set aside while preparing the cinnamon sugar mixture.
05 - Combine brown sugar and ground cinnamon in a separate bowl, mixing until well blended.
06 - Roll the risen dough into a 16x12-inch rectangle. Spread softened butter evenly over the surface, sprinkle with cinnamon sugar mixture, and distribute strawberries across the dough.
07 - Roll the dough tightly from the long edge. Cut into 12 equal pieces using a sharp knife or dough cutter.
08 - Place rolls in a greased 9x13-inch baking pan, leaving space between each. Cover and let rise for 30-45 minutes until puffy and nearly doubled.
09 - Preheat oven to 350°F while rolls complete their second rise.
10 - Bake rolls for 22-25 minutes until tops are golden brown and filling is bubbling around the edges. Let cool in the pan for 10 minutes before glazing.
11 - Beat cream cheese and softened butter until completely smooth. Add powdered sugar and vanilla extract, mixing until combined. Gradually add milk until desired spreading consistency is reached.
12 - Spread the glaze generously over the warm rolls. Serve immediately while still warm for the best texture and flavor.