My Sister's Famous Sweet Potato Casserole

5-6 sweet potatoes
3 eggs
3/4 cup sugar
1/2 stick butter
1/2 cup milk
1 tsp vanilla
dash cinnamon

TOPPING
1 cup brown sugar
1 cup pecans
1/2 cup flour
2/3 stick butter

Preheat oven to 350 degrees.  Beat eggs, sugar, butter, milk, vanilla, & cinnamon in bowl.  Boil potatoes until fork tender, let cool enough to handle, peel and then place in bowl with egg mixture.  Mix well.  Place in casserole dish and bake 20-30 minutes.  Mix topping and sprinkle over casserole and bake additional 10-15 minutes.