For Fresh Breadcrumbs:

Take bread slices, cut them into small chunks.

Put it in a plate or a plastic bag and freeze them for 2 hours.

Now take them in a blender and make it into powder.

You can store this in a ziploc bag in the freezer.

For Dry Breadcrumbs:

Preheat oven to 150 degree C.

Take bread slices and arrange it in a tray.

Pop this in oven for 5 to 7 mins till it turns golden brown, now remove it from oven, flip it over and bake them again for another 5 to 7 mins.

Now remove them from oven and let them cool down.

Now break them roughly and take them in a blender and powder them.

Store this in a ziploc bag in freezer.

Instead of cooking this in oven, you can toast them in a toaster as well.