Its because the witch put the poison on the Queens plate instead of Blanche’s! Right before Blanche was about to eat, the Queen says “You mixed up our plates”, so the Queen ate the poisoned food instead.
The plates were switched cause the Queen requested a smaller portion which was the one with the funky seasoning! (≧∀≦) The witch thought the smaller portion was for Blanche ( ̄∇ ̄")
But wait guys im confused. Didnt blanche eat the meat that was seasoned by that witch? Why is the queen feeling dizzy instead?