My own recipe is very simple. You will need:
1. Fentimans Curiosity Cola
I always go for Curiosity Cola. It's not as sweet as some other sodas out there and has a nice slightly flora taste. And the bottle is super vintage-y.
2. Organic Finnish ice cream Jymy
Any good quality ice cream would do, but I'm a fan of this Finnish brand. .
3. A soda glass
Make sure it's a tall glass. You don't want to lose any of that sweet-sweet foam. I have this old Coca-Cola glass I got from McDonald's.
4. Fun paper straws
1. Fill about two-thirds of your glass with soda.
2. Plop a nice big scoop of ice cream into the glass. It will start foaming - don't fret. That's why you have such a tall glass.
3. Once the foam has settled a little, add a bit more soda.