She will also spawn an exit portal with a Dragon egg on top. Entering the portal will activate a text cutscene that lasts for an average of 8 minutes, 30 seconds. After the cutscene, the player will be teleported to their spawn point/Bed in The Overworld.
Unfortunately there is no general answer because pound is a measurement of weight and cup is a measurement of volume. It depends on what you're measuring. For example: For water 1 cup = 8 fluid ounces = 8 ounces weight = 0.5 pounds. So 2 cups water weighs 1 pound. But this only works for water.
I checked the 2 lb. bag of store brand powdered sugar, and it said there were 30 units of .25 cups, which would mean 7.5 cups per bag, and 3 3/4 cups per pound. I have to assume there is an error on the back of the pound box of the store brand, and the correct answer is in fact approx. 3 3/4 cups per pound.