In a large bowl, combine warm milk, sugar, and yeast. Let sit for 5 minutes until foamy. Add melted butter, egg, and salt. Mix well. Gradually add flour, mixing until a soft dough forms. Knead for 8-10 minutes until smooth and elastic.

Place dough in a greased bowl, cover with a damp towel, and let rise in a warm place for 1 hour or until doubled in size.

Punch down dough and roll into a 16x12 inch rectangle on a floured surface. Spread softened butter evenly over dough. Mix brown sugar and cinnamon together, then sprinkle over the butter. Roll tightly from the long side and cut into 12 equal rolls.

Place rolls in a greased 9x13 inch baking pan, leaving space between each. Cover and let rise for 30 minutes. This is the TikTok secret: pour the entire cup of heavy cream over the rolls before baking, ensuring it pools around them.

Preheat oven to 350F. Bake rolls for 25-28 minutes until golden brown on top. The heavy cream will create an incredibly soft, gooey texture.

While rolls bake, beat cream cheese and butter until fluffy. Gradually add powdered sugar and vanilla, beating until smooth and creamy.

Let rolls cool for 5 minutes, then generously spread cream cheese frosting over warm rolls. Serve immediately while gooey and warm.