Swedish tradition here!
So, we almost always woke up to a small gift on our bedside.
A book, a necklace or a small car, just a something small.
Then we made rice porrige (as mentioned in OP) with cinnamon and sugar and milk ontop.
(mum and dad didn't eat it so it was just me and my brother)
Then it's time for the DISNEY TIME!! (which is an old cartoon run every single year where they cut off the racist parts and dumb stuff every year, such as the part where Goofy puts a fork in the outage and gets electrocuted in order to make popcorn, to give you an idea). Also, it's VERY important to shout at the tv if they don't lit the candle at precisely 15:00.
I mean, there's 6 adults screaming if they go over just a second.
We will whine about it later.
(They also send a snippet or two from the newest disney movies which we all must see and if someone talks, they are banished from the room).
After that, at 4pm we eat.
It's a smörgåsbord. Ham, meatballs, brown beans, "Jansons frestelse" (potatoes baked with anchovies and cream), rootbeet salad, eggs, smoked salmon, herrings of different kind and the most important part of it all:
JULMUST.
Seriously, every year coca cola brings on the artillery and tanks and promote it but we kind of prefer the less sweet, more carbonated kind called Julemust.
It's a great company to the salty food and the sweet candies.
After we're in a food coma, there's the gifts! It almost always starts at 6pm, hence "Christmas Eve".
Ofc, we eat lots of candy, one that's very prominent on every table in Sweden is "Knäck". A tough, chewable toffee with bits of almond in it.
Difficult to make, but aahh, it's so good.
And then people leave.
(notice, I've not written anything about alcohol, because... We've never had that? Christmas is for the kids after all, and it wasn't until very recently I found out that people drink heavily and that's actually a wide spread problem in the country)