In 1-quart saucepan, heat half-and-half and 30 of the chocolate candies over low heat, stirring constantly, until candies are melted and sauce is smooth. Remove foil from brownie and ice cream layers. Place 1 brownie layer on serving plate; top with 1 ice cream layer. Repeat with remaining brownie and ice cream layers, ending with brownie layer. Spoon sauce over torte. Freeze at least 2 hours.