Article by R’ Yair Hoffman copied and pasted from front page of YWN:
“There is no need for the two different food items to have two separate berachos. This is one of the biggest misconceptions in Hilchos Purim. There is an issue, however, of taking one food item and cutting it in half into two slices. The Aruch haShulchan (OC 695:14) writes that just because one cut it in half it should be considered two foods? Perhaps it is this statement of the Aruch HaShulchan that has caused the two blessing myth to exist. If someone sends another two pieces of meat from two different limbs that tastes slightly different this is considered two foods (Mikraie Kodesh SIman 38).”