Do I need to boil the sweet potatoes first?
No. Baking from raw keeps the slices intact and helps you get caramelized edges . Parboiling can make the slices more delicate, especially if you cut them thick, so they are easier to break when you stir or baste.
Can I make candied sweet potatoes ahead of time?
Yes. Bake them fully, cool slightly, refrigerate, then reheat covered at 350°F until hot all the way through. If you are using marshmallows , add them only during the reheat so they stay fluffy and toasty instead of dissolving.
Why is my sauce grainy?
That usually happens when the sugar crystallizes or the syrup gets a little too dry around the edges. Whisk the glaze really well so the sugar is evenly moistened, and make sure you have enough liquid in the pan. Avoid overbaking until the sauce looks dry. If it still turns grainy, stir in 1 to 2 tablespoons hot water and bake 5 more minutes to smooth it out.
How do I stop them from getting watery?
Use a wide baking dish so moisture can evaporate, bake uncovered, and do not overcrowd. Also, let the pan rest 10 minutes after baking so the syrup thickens.
Can I use maple syrup instead of brown sugar?
You can swap up to half the brown sugar for maple syrup. Going all maple is delicious but looser and less candy-like. Reduce the added liquid a bit if you do.
Do I need marshmallows?
Nope. If you love them, add a layer for the last 5 to 7 minutes. If you do not, you are still invited to dinner.