Here's the recipe from Farm to Table
Try this adaptation. The spinach was calling to be cooked and served as a fair backdrop for the Yams,
Two large yams. Pricked all around with a fork. Cooked for 45 minutes at 450 degrees F. Let the yams rest and cool for a few minutes.
While the yams cool, prepare the sauce. Melt 1/2 cup butter or vegan spread in a pot. Whisk in a scant 1/2 cup brown sugar, at least 1/2 lemon and season with cayenne pepper. Keep this at a low heat so it reduces. Throw in a few handfuls of pumpkin seeds. At the very end add 2 small scallions to the sauce, shut off the heat. Now start to pan fry the yams. Carefully slice yams into 3/4 inches with the skins on. Pan fry the slices in hot peanut oil to give them a crust and caramelize the edges slightly. Plate 2-3 slices then pour a generous amount of sauce over each.