The combo of cooked fruit layered with breadcrumbs or cubes, which defines the humble betty, doesn't sound like much. But something special happens when it's all baked together and the bread gets soft and gooey with the juices of the fruit. In this plum betty, chopped walnuts add a crunchy touch mixed in with the bread. Pecans or almonds are also tasty options.
Make Ahead Tip: Store the topping (Step 3) in an airtight container for up to 3 days.
Tip: To make your own fresh breadcrumbs, trim crusts from whole-wheat bread. Tear bread into pieces and process in a food processor until coarse crumbs form. One slice of bread makes about 1/2 cup fresh breadcrumbs.
1/2 starch, 1 fruit, 1 other carbohydrate, 2 fat