Blend oreo and 1/4th cup butter to make a paste.
spread it on the mould and press it well to make a base.
freeze it for 10 mins.
melt nutella in a pan and add 1/4th cup butter and mix well
spread it on the frozen base.
freeze it over night.
garnish with cherries or oreo pieces or chocolate chips.
relish the taste of the yummy tart