This sweeter style was reintroduced to satisfy the demand from markets where a semi-dry champagne was required to pair with desserts, wedding cake and for those with a sweeter palate. In all other regards it is a replica of the Brut Réserve.
What makes Rich NV different from Brut Réserve is the increased dosage of 34 g/l of sugar which makes it the perfect drink for occasions when something a little less dry is called for. This would be the perfect toast to serve with wedding cake but equally it complements tarts and crumbles.