In Finnish this is called puolukkavispipuuro, straight translation being lingonberry whisked porridge, but fluffy pink porridge sounds better right?
It's a pretty special porridge because after you boil it, you let it cool down completely, and then whisk really good to turn it into a light and fluffy consistency that doesn't resemble porridge anymore, perfect.
This is by far my favourite porridge, and it's very delicious and pretty healthy, depending on how much sugar you pour in it. The grain used for this porridge is apparently called semolina in English, it's mannasuurimo in Finnish. You can make this porridge without berries or juice, but then it's really bland, and I don't care for bland, so I always make it with lingonberries, along with using juice my mom has made, that has a variety of Finnish berries. I don't know if anyone else uses different berries, but the traditional way is to use lingonberries, which have a tart taste to them, and it works perfectly for this porridge.
If you want a recipe, you can ask for it in the comments.