Sweet Potato Casserole (Yams)

8 yams cooked, mashed, sweet potatoes
1/2 c butter
1 c sugar
3 c mini marshmallows
2 eggs
1 c brown sugar
1 tsp vanilla
1/3 c flour
1/2 tsp cinnamon
1/3 c butter
1/3 c milk
1 c chopped pecans

• Combine yams, sugar, eggs, vanilla, cinnamon 1/2 c butter, pecans & milk.
• Beat until smooth.
  
• Spoon into a greased 2 qt casserole dish.
• Sprinkle with marshmallows.
• Combine brown sugar, flour, & 1/3 c butter.
• Sprinkle over top of casserole.
• Bake at 350 for 30 minutes.