Duchess of Oldenburg
Duchess of Oldenburg is a popular early-season apple, primarily used as a cooking apple although it can be eaten fresh when fully ripe. It is often known simply as "Duchess".
It is easy to grow, and therefore a good choice if you are looking for apples to cook with in early August.
The key to its success in the kitchen is its tart acidic flavor which holds up well in cooking. Slices usually lose their shape during cooking, making Duchess of Oldenburg best suited for recipes that require apple sauce.