[header] How to make koeksisters [title] Make the syrup. [step] The night before you plan to make your koeksisters, make a batch of syrup. This gives the syrup time to chill, and the hot doughnuts will be dipped into the cold syrup to get them crispy and shiny. 
[substeps] Bring the water, sugar, and cream of tartar to a boil over medium heat in a small saucepan. Stir constantly so the sugar doesn't burn.