What is maderia crumb cakes?

"Maderia crumb cakes" doesn't seem to be a common or widely recognized term in baking. It's possible that:

* It's a regional or family recipe: The term might be specific to a certain area or family tradition.

* There's a typo or misspelling: Perhaps the name is slightly different, like "Madeira cake with crumbs" or "Meringue crumb cake."

* It's a unique creation: Maybe someone invented this recipe, and it hasn't gained widespread popularity yet.

To clarify:

* Could you provide more context? Do you remember where you saw or heard this term?

* Is there any additional information about the recipe, like ingredients or how it's made?

With more information, I might be able to help you figure out what "Maderia crumb cakes" are!