Sweet Potato Pie - cooking recipe

Ingredients

3 to 4 large sweet potatoes (yams)
3/4 c. brown sugar (more or less)
1/4 to 1/2 c. butter
granulated sugar (optional)
pie crust

Preparation

Cook sweet potatoes until soft; mash gently with butter.
Add brown sugar (to your liking); stir.
Bake pie crust 5 minutes in a 350\u00b0 oven.
Take out of oven; pour in sweet potato mixture and bake 10 to 20 minutes longer.
Sprinkle sugar on top (optional).