Coat a 9×13 glass baking dish with cooking spray and arrange rolls evenly to thaw (if doing homemade rolls, roll dough into golf-ball-size balls and arrange the same way).
Cover with plastic wrap sprayed with cooking spray (to keep the dough from sticking to the plastic wrap).
Allow rising until doubled in size. This can take 4-5 hours. If you need the rolls to thaw quicker, follow the quick-rise instructions on the frozen roll packaging.
Pre-heat oven to 350-degrees.
In a bowl, combine coconut milk and sugar and whisk until sugar is dissolved.
Pour about 2/3 of the coconut mixture over the rolls and bake for 20-30 minutes (or according to package/dough recipe instructions) or until golden brown and dough is baked through.
Remove from oven and pour remaining coconut mixture evenly over the top of the rolls.
The rolls should be sticky and gooey on the bottom (read notes above). Can be served upside down or right-side up.