De or het speculaasplank?

The correct Dutch article is:

de speculaasplank

How to use speculaasplank

the speculaasplankde speculaasplank
this speculaasplankdeze speculaasplank
that speculaasplankdie speculaasplank
our speculaasplankonze speculaasplank
your speculaasplankjouw speculaasplank
every speculaasplankelke speculaasplank
which speculaasplank?welke speculaasplank?
a big speculaasplank / the big speculaasplankeen grote speculaasplank, de grote speculaasplank