Q. If one said Kiddush on wine before a Seudah (Shabbos/Yom Tov), does one say Shahakol on ice cream if it is served as dessert (for those who are accustomed to make a bracha on ice cream during a meal)?

A. Poskim disagree, some (Vezos Habracha p. 98, Birchas Hashem p. 45, Ohr Torah – Sivan 5761 p. 626) maintain that one does not recite a brocho, The reason being mainly that they consider ice cream to be a liquid and the brocho said on the wine exempts liquids that one drinks after the wine. Also, some are in doubt on the above and they rule that safek brachos lehakel, when in doubt, we do not recite.
Others, (Mibeis Levi p. 49, Vezos Habracha ibid. quoting the Staipler Gaon zt”l) maintain that ice cream is solid food and it does not become exempt with the wine brocho.
Horav Shlomo Miller Shlit”a agrees with this last opinion.

Rabbi A. Bartfeld as revised by Horav Shlomo Miller Shlit”a