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 to combine. Gradually incorporate flour, mixing until a soft, slightly sticky 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 or a clean towel, and let rise for 1 hour until doubled in size.
04 - Toss diced strawberries with cornstarch in a small bowl until evenly coated. Set aside to allow cornstarch to absorb moisture.
05 - Combine brown sugar and ground cinnamon in a separate bowl, stirring until well blended.
06 - Punch down risen dough and roll into a 16x12-inch rectangle on a lightly floured surface. Spread softened butter evenly over dough, leaving a small border at the edges. Sprinkle cinnamon sugar mixture across the buttered surface, then distribute cornstarch-coated strawberries evenly over the top.
07 - Starting from the long side, roll dough tightly into a log. Use a sharp knife or dental floss to cut the log into 12 equal rolls, approximately 1 ¼ inches thick.
08 - Place rolls in a greased 9x13-inch baking pan, leaving space between each for expansion. Cover loosely and let rise for 30-45 minutes until puffy and nearly doubled.
09 - Preheat oven to 350°F.
10 - Bake rolls for 22-25 minutes until tops are golden brown and filling is bubbling around the edges. Remove from oven and let cool in pan for 10-15 minutes.
11 - While rolls are cooling, beat cream cheese and softened butter together until smooth and creamy. Add powdered sugar and vanilla extract, mixing until fully incorporated. Drizzle in milk 1 tablespoon at a time until desired pouring consistency is reached.
12 - Spread or drizzle the cream cheese glaze over the slightly warm rolls. Serve immediately while still warm for the best texture and flavor.