Scalloped Sweet Potatoes

Just got in from the beach. Sweet Potato signs were up at every "vegetable stand". I love sweet potatoes. Wish  I could make candied ones like my grandmother. I come close, but just can't quite get them crispy on the edges like she did. If you know how, facebook me (facebook.com/samcoates). I love scalloped potatoes, here's a recipe using sweet ones...YUM!

Scalloped Sweet Potatoes

3 T butter
3 large onions, thinly sliced
6 large sweet potatoes, very thinly sliced (about 14 cups) divided.
2 C shredded Asiago cheese, divided
1 t salt, divided
2  C heavy whipping cream, divided

In  a large skillet, melt butter over  med. heat. Add onions; cover and cook, stirring occasionally, for 20 min. until very tender. Uncover, increase med-high heat and cook for  5 - 6 min, stirring frequently until onions are caramel color.  Remove from heat and set aside.

Preheat oven to 350 degrees. Spray a 13 X 9 inch baking dish with non-stick cooking spray.

Layer potato slices over bottom of baking dish to cover. Sprinkle evenly with 2 T cheese,  1/4 t  salt, and 2 T cream. Repeat layers 3  times, beginning with potatoes and ending with cream. Pour remaining 1 1/2 C  cream over top of layers. Sprinkle evenly with remaining 1 1/2 C  cheese and top with caramelized onions. Cover  with aluminum foil, and bake for 1 hour and 10 min,or until potatoes are tender. Let stand for 10 min.  before  serving. (makes 10-12 servings).