Orange-Topped Italian Polenta Cake

Polenta cake is popular throughout Italy. There are many variations, including those that are fragrant with orange and almonds. This recipe can be made either directly in the insert of a 4-quart round cooker or in a small baking pan set inside a 6-quart oval cooker. For a shortcut version, use purchased orange marmalade. For soy-free, use a soy-free vegan butter.