Sweet Potato Chips

I'm trying to finish up the 7 sweet potatoes MIL bought for us and I vaguely remember seeing a recipe in Kitchen Capers to microwave the thinly sliced potatoes. I microwaved it on High for 5 - 6 mins, flip to the other side and microwaved it on High again for another 4 - 5 mins. Some of the chips get burnt whereas some are alright. I suppose I should have lay a single layer but I just cut the whole sweet potato and stacked them up. I didn't bother to sprinkle with salt and pepper, we just eat it plain. Definitely healthier than deep fried ones :)