You need 3 ingredients. The key ingredients include: Sweet potatoes are often made even more sweet using ingredients like maple syrup, brown sugar, molasses, and even marshmallows. We like that apartmentcooker goes definitively in the other direction by adding bacon, parmesan, onion, garlic and a creme fraiche bechamel, while still paying homage to more traditional recipes (she adds a tablespoon of brown sugar to the bechamel, with delightful results). Thinly sliced sweet potatoes are layered in the baking dish (we used one dish big enough for two rather than individual ones) with bechamel, crisped bacon, and raw onions and garlic, which infuse the gratin with their fragrance. A sprinkling of parmesan on top helps with browning, but if you want a little more color, pop the gratin under the broiler for a few minutes at the end. We found that 20-25 minutes baking time was perfect for a two-person baking dish. - A&M, My boyfriend is an overall carb hater (I never thought that was possible), but he's a sucker for sweet potatoes. The bacon gets crisp and the onions get soft and make this gratin super delicious. Individual portions mean I can make a big batch, and reheat it later as a last-minute side dish., Serves 2.
