Any white bread will do for making panko. An Asian chef I once worked with swore that the best homemade panko came from Wonder Bread!
If you don’t have white bread, use soda crackers--such as Saltines and oyster crackers--or Melba toast instead.
1. Push chunks of white bread through the shredding disk of a food processor to make coarse crumbs.
2. Spread the crumbs on a baking sheet and bake at 300 F degrees until the crumbs are dry but not toasted, about 6 to 8 minutes. Shake the sheet twice during baking. Be careful not to let the crumbs brown!
3. Immediately remove bread crumbs from oven and allow them to cool.

