a lemon with its
peel, simmered and then roasted
is tender and sweet

source, 4 servings
4 sweet potatoes, wedged; 1 whole lemon, 1 T ginger, salt, 1/4 c olive oil, 1 T cumin, 1 T coriander, simmered
spread potatoes in single layer on oiled parchment on a rimmed baking sheet, top with lemon oil, 400 F, 20-30 minutes, turning once, broil