Recipes for blueberry crisp do not typically use any eggs at all. The most common basic ingredients used to make the filling for blueberry crisp are blueberries, cornstarch, sugar and a pinch of salt, to which Martha Stewart's recipe adds a teaspoon of lemon juice. The topping is generally made with flour, oats, chopped nuts, baking powder and butter.
A blueberry crisp recipe at the Food Network website adds cinnamon and nutmeg to the topping, and recommends serving the dessert with whipped cream and ice cream.
Other berries can be added to the blueberry filling, if desired, such as chopped strawberries, blackberries and raspberries.