1. Preheat oven to 375°F (190°C). Grease a 9-inch round baking pan.

2. In a large bowl, whisk together the flour, sugar, baking powder, and salt. Cut in the cold butter until mixture resembles coarse crumbs.

3. In a separate bowl, combine the buttermilk, food coloring, and vanilla. Add the wet ingredients to the dry ingredients and stir just until a soft dough forms.

4. Turn the dough out onto a lightly floured surface and knead gently a few times. Roll the dough into a 12×9-inch rectangle.

5. In a small bowl, beat the cream cheese and butter until smooth. Spread the mixture over the dough, leaving a 1/2-inch border.

6. Starting from the long side, tightly roll the dough into a log. Cut the log into 12 equal pieces and arrange them in the prepared baking pan.

7. Bake for 20-25 minutes, until the rolls are puffed and golden brown.

8. Make the cream cheese frosting: In a medium bowl, beat the cream cheese and butter until smooth. Gradually add the powdered sugar and vanilla, beating until well combined.

9. Spread the frosting over the warm cinnamon rolls and serve immediately.