Kugelis Baked Potato Pudding

This is a Lithuanian recipe that my Aunt use to make.
The base was ground potato and it was put into a
deep baking dish with onion, bacon and butter.

Ingredients:
5 lbs. peeled potatoes
1 lg. onion
4 eggs
Salt and pepper to taste
2 tbsp. Bisquick
2 tbsp. flour
2 c. milk, scalded
2 sticks melted butter

Directions:
Grate potatoes and onion; drain off liquid.
Pour scalded milk over potatoes.
Add flour, Bisquick, melted butter, eggs, salt
and pepper, mixing well. Pour into 9x13 inch baking pan.
Place a in 400 degree oven for 15 minutes.
Lower heat to 375 degrees
and bake for 45 minutes or until done.