(Or: Finnish Rice Porridge Emigrates to America)

I didn’t mean to invent a transatlantic dessert. I was just trying to use up the vispikerma before it expired.
As I like to tell my students, placement of emphasis matters.
Finnish riisipuuro is rice porridge. The rice IS the point — cooked low and slow in milk until it’s starchy and thick, served warm with cinnamon sugar and a pat of butter melting on top. It’s the kind of food that exists to be comforting rather than exciting. Your mummo made it. Her mummo made it. It doesn’t need to impress you. Very Finnish.
American rice pudding is a completely different animal wearing the same name. It’s a dessert that happens to have rice thrown in there for texture. Creamy, vanilla-heavy, sweet enough to register as a treat. Kozy Shack sells it in little plastic cups at the grocery store, right next to the Jell-O. The pudding is the point.
I made both versions in the same pot on the same Saturday. Same rice, same slow cooker, two completely different desserts separated by generous (very generous) amounts of Bird’s Custard. (Yes, keep reading, I’m getting there.)
The base recipe is a simple slow cooker rice pudding: puuroriisi (short-grain white rice, or pudding rice in the UK), vispikerma (heavy cream or whipping cream), maitojuoma (skim milk), sugar, vanillin sugar, and salt. Six ingredients, three and a half hours on low, no stirring required. The slow cooker does the work while you do other things. I wrote a Six on Saturday post. I cleaned the kitchen. I thought about cream percentages.
Please note that the Traditional Riisipuuro most people’s mummo made used just rice, milk, and a pinch of salt. Hello, Nordic minimalism. That didn’t help my extra dairy situation, though, so I did what I usually do and just kept… embellishing.
When the timer went off, I had a rice pudding that looked like riisipuuro’s slightly fancier cousin — pale, creamy, properly set. Respectable. Recognizable. Very Finnish, if Finnish food ever went to finishing school.

Then I made Bird’s Custard.
Bird’s Custard powder is a British invention from 1837, created by Alfred Bird for his wife, who was allergic to eggs. It’s cornstarch, flavoring, and yellow coloring — not technically custard at all, but close enough that generations of British households have used it interchangeably. In Finland, you can find it at international stores catering to assorted expats, waiting quietly alongside waxy imported chocolates and adventurously-flavored Cheetos.
One pint of Bird’s Custard, stirred into the finished rice pudding. The color shifted from pale cream to golden yellow. The texture went from “Finnish rice porridge” to “something trying to be American.” My husband had a bowl. He seemed satisfied.

I looked at the pot. I thought about Kozy Shack. I made another pint of custard.
Two pints of Bird’s Custard in a slow cooker full of Finnish rice pudding, and the transformation was complete. This was no longer riisipuuro. This was vanilla custard with rice floating in it. The rice had become the afterthought. The pudding had become the point.

It still wasn’t as sweet as the American stuff — Bird’s Custard is more restrained than Kozy Shack’s aggressive vanilla sugar bomb approach. But it tasted like rice pudding the way Americans mean rice pudding. Creamy. Vanilla-forward. The kind of thing you eat cold from the fridge at 11pm standing at the counter, not the kind of thing you serve warm with cinnamon and a cultural expectation of austerity.
My son, for the record, chose ice cream for dessert. But he ate the rice pudding for breakfast the next morning, which tells you everything you need to know about the difference between “dessert” and “food.” Ice cream is dessert. Rice pudding is breakfast. The kid understands strategic category management.
The final tally: Finnish vispikerma. British custard powder. American slow cooker. Rice from the cold cellar that could have come from anywhere. Four countries in one dessert, or possibly five if you count the vanillin sugar’s mysterious European origins.
Mummo’s recipe, if mummo had emigrated.
Very Much Not Finnish Slow Cooker Riisipuuro
Ingredients
For the base:
- 300g puuroriisi (pudding rice)
- 400ml whipping cream (vispikerma)
- 800ml skim milk (maitojuoma)
- 75g white sugar
- 1.5 tablespoons vanillin or vanilla sugar
- Pinch of salt
For the Bird’s Custard upgrade:
- 4 tablespoons Bird’s Custard powder
- 4 tablespoons white sugar
- 2 tablespoons vanillin or vanilla sugar
- Skim milk (enough to make 2 pints custard)
Method
Dump the rice, vispikerma, skim milk, sugar, vanillin sugar, and salt into the slow cooker. Stir to combine. Don’t worry if it looks like a lot of liquid, it really isn’t. Rice will absorb everything and still want more. Put the lid on. Set it to LOW.

Walk away for 3 to 3.5 hours. Stir once or twice if you happen to wander past, but don’t stress about it. The slow cooker is doing the work. You’re doing other things. This is the deal.
When the timer goes off, the rice should be tender and the liquid should be absorbed into a thick, creamy porridge. If it’s still loose, give it another 30 minutes. Slow cookers vary. Mine runs hot. Yours might not.
If you’re stopping here: This is the fancy Finnish version. Respectable. Traditional. Your mummo would approve.
If you’re crossing the Atlantic: Make the Bird’s Custard according to package directions — 2 tablespoons powder, 2 tablespoons sugar, and 1 tablespoon vanillin or vanilla sugar per pint, topped up with skim milk and microwaved until thick. Stir one pint into the rice pudding. Taste. Consider your life choices. Stir in the second pint. Welcome to America.
Serving
The Finnish version: warm, with cinnamon sugar and butter melting on top. Austere. Comforting. Breakfast food.
The American version: warm or cold, eaten standing at the counter at 11pm. The custard upgrade makes it sweet enough to feel like dessert, but not so sweet that you can’t justify it as breakfast. Multitasking FTW.
Keeps in the fridge for several days. Reheats well in the microwave. The Bird’s Custard version actually improves overnight as the flavors meld and the custard sets further into the rice.
Notes
- The vispikerma matters. Don’t substitute all skim milk — you need the fat for structure and richness. The v1.0 all-milk version I made of this was thin and disappointing. A bread machine taught me precision matters and I never recovered. Learn from my mistakes.
- Bird’s Custard powder is cornstarch-based, not egg-based, so this is technically two different thickening systems working together. The rice releases starch. The custard adds more starch. The result is very, very thick.
- One pint of custard = medium upgrade. Two pints = full American transformation. Choose your own adventure.
- Top that bowl with a dollop of jam if, like me, you realize this is already dessert and there’s no use holding back when you’re this far gone.