01 -
Set your oven to 350°F and let it warm up.
02 -
Cut sweet potatoes into thick slices and toss into a large pot. Add enough water to cover them, then boil for around 5 minutes. They should be soft around the edges but firm in the middle. Drain them and put them back in the pot.
03 -
Melt the butter in a small pot. Stir in both sugars, cinnamon, nutmeg, vanilla, and a pinch of salt. Heat over medium, stirring, until the sugar's dissolved. Takes about 5 minutes.
04 -
Drizzle the sweet potatoes with the sugar mixture and mix gently to coat. Spread them out in a baking dish and bake for 10 minutes. Take them out, toss gently in the syrup, and pop them back into the oven for another 15-20 minutes. The potatoes should caramelize beautifully by the end.
05 -
Set aside for 5 minutes to cool before serving.