Our favorite treat for the feast of St. James is Coupe Saint-Jacques (Ice Cream Cup St. James).
In Cooking with the Saints, the author says to "Put any mixture of fresh fruits in season in a parfait glass. Pear, grapefruit, orange, and dark grapes or strawberries make a delicious combination. Spoon lemon sherbet over the fruit. Top with a spoonful of chocolate syrup if desired."
In My Nameday -- Come for Dessert, the author suggests mixing "two or three kinds of fruit with two or three kinds of ice cream neatly arranged in deep glasses, flavored with liqueur and garnished with whipped cream."
Personally, I don't think there is any wrong way to make an ice cream cup!
Updated to add a photo of our 2012 Coupe Saint-Jacques, served in Chocolate Dipped Ice Cream Cups and topped with handmade Chocolate Cockle Shells, the symbol for St. James: