- Cut the bread into 1-inch cubes.
- Drizzle the butter over the bread and stir to coat.
- Combine 1 cup sugar with cinnamon, nutmeg, salt and flour. Stir into bread and butter.
- Combine rhubarb with orange zest, cornstarch, brown sugar and sugar.
- Combine bread mixture with fruit. Pour into an 8×12 baking dish and bake for 40 minutes or until golden brown at 350°.