Twice Baked Sweet Potatos with Sour Cream, Chipotle, and Lime

This side dish from Kalyn's Kitchen caught my eye as soon as I saw it.  Up until now, I've only eaten sweet potatoes with butter and brown sugar.  I was intrigued by the savory concept for a sweet potato, so I added it to our menu for last week.  I'm really glad that I did.  This was such a welcome change to the sometimes too sweet version I was used to.  I paired these potatoes with a french dip sandwich, which will appear in the next few days.  I'm not so sure that sweet potatoes go with roast beef, but that was just poor planning on my part.  I definitely plan to make these again, but next time, I will just make sure to plan the main dish accordingly!

2 Sweet Potatoes
Olive Oil
1/4 cup Sour Cream
1 tablespoon Butter, softened
2 teaspoons Fresh Lime Juice
Small Pinch of Chile Powder (originally called for ground chipotle, but I didn't have it)
Salt and Pepper, to taste
1/4 cup Scallions, sliced

Slice the potatoes in half, lengthwise.  Rub the halves with olive oil.  Arrange the potatoes on a baking sheet that has been sprayed with non-stick spray.  Bake them at 400 degrees for about 45 minutes, turning once during cooking, until the potatoes can be easily pierced with a fork.  When the potatoes are soft, remove them from the oven and let them cool until they can be handled.  Use a spoon to scoop out most of the flesh and put it in a bowl, leaving enough flesh attached to the skin to create a shell.  Stand the empty shells back on the baking sheet.  In a bowl, mix the sour cream, soft butter, lime juice, and chili powder.  Stir the mixture and the scallions into the bowl with the mashed sweet potato flesh.  Season to taste with salt and pepper.  Transfer the sweet potato mixture into a pastry bag and pipe it into the shells (or just spoon it in, like I did).  Bake the filled sweet potatoes back into the oven and bake for 20-25 more minutes, until the filling is hot and slightly browned.  Serve hot, garnished with additional sliced scallions, if desired.