Simplify the following text for a Grade 7 native English-speaking person.
Original: Christmas pudding or Plum pudding is a steamed dessert that orginated in the 1420s and is served on Christmas day ( December 25 ) and tastes like steamed pudding , with lots of dried fruits and nuts , and made with suet .
Simplified: Christmas pudding is a pudding traditionally served on Christmas Day ( December 25 ) .