01 - Combine warm milk and yeast in a large bowl. Let stand for 5 minutes until mixture becomes frothy, indicating the yeast is active.
02 - Add melted butter, sugar, egg, and salt to the yeast mixture. Mix thoroughly. Gradually incorporate flour, mixing until a soft, workable dough forms.
03 - Knead dough on a lightly floured surface for 6-8 minutes until smooth and elastic. Place in a greased bowl, cover, 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.
05 - Combine brown sugar and ground cinnamon in a separate bowl. Mix until uniform.
06 - Roll risen dough into a 16x12-inch rectangle. Spread softened butter evenly over surface. Sprinkle cinnamon sugar mixture, then distribute cornstarch-coated strawberries across the top.
07 - Roll 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. Cover and let rise for 30-45 minutes until puffy.
09 - Preheat oven to 350°F.
10 - Bake rolls for 22-25 minutes until tops are golden brown and filling is bubbling. Allow to cool slightly in pan.
11 - Beat cream cheese and butter until smooth. Add powdered sugar and vanilla extract, mixing until combined. Adjust consistency with milk, adding 1 tablespoon at a time until desired thickness is reached.
12 - Spread cream cheese glaze generously over warm rolls. Serve immediately while still slightly warm.