Pre-heat the oven to 375. Prep the two cleaned sweet potatoes by cutting them in half lengthwise, then cutting each half again to have four long quarters. Go down the length of each quarter with your knife cutting them into about 1/2 inch thick wedges.
Transfer the wedges into a large baking dish, then add in the olive oil, balsamic, salt and freshly grated parmesan. Toss it all to combine and thoroughly coat the sweet potatoes. Get the baking dish into the oven to bake for 40-45 minutes. The sweet potatoes should get perfectly tender on the inside while the outside becomes crisp and caramelized.
Take the dish out and let the potatoes cool for a couple of minutes, then serve immediately with your favorite main course!