Sweet Potato Casserole

2 1/4 lb sweet potatoes, peeled and chopped
1 cup half and half
3/4 c packed brown sugar
1 t salt
2 t vanilla
2 large eggs
cooking spray

Topping:
1 1/2 c miniature marshmallows
1/2 c flour
1/4 c packed brown sugar
1/4 t salt
2 T chilled butter cut into small pieces
1/2 c chopped pecans

Preheat oven to 375 degrees

Boil potatoes until very tender, drain and cool slightly

Place potatoes in large bowl.  Add half and half, 3/4 c sugar, salt and vanilla.  Beat until smooth.  Add eggs; beat well ( mixture will be thin).  Scrape mixture into a 9x13 baking dish coated with cooking spray.

To prepare topping, sprinkle marshmallows over top of casserole.  Combine flour, sugar and salt into bowl.  Cut in butter until mixture resembles coarse meal.  Stir in pecans and sprinkle over marshmallows.  Bake at 375 for 30 minutes or until golden brown.