I stumbled over the recipe of the finnish alocohole beverage Kilju, which is made of water, sugar and yeast:
https://en.wikipedia.org/wiki/Kilju
You can have up to 17% alcohole. So today I bought 2kg sugar and some dry yeast from Coop. I have mixed it all with 10 l warm water and now it's fermenting as hell! Should be ready to drink in 5 days, and then I can get drunk and hooray!
Anybody here who have tested this? Why have I never heard of this before? Everybody talks about making wine, beer and cider but the point usually is to get drunk, and you only need sugar, yeast and water! Thanks, finns, for discovering this!