12 lbs. rutabaga, peeled and diced (about 6 c.)
2 tbsp. brown sugar
1 c. sour cream
2 tbsp. butter
1 tsp. baking powder
1/2 tsp. salt
1/8 tsp. pepper
2 egg yolks, lightly beaten
2 egg whites, beaten until they form stiff peaks
1/3 c. bread crumbs
2 additional tbsp. butter

Cook diced rutabaga, peeled and diced, until very tender. Mash rutabaga and stir in sour cream, 2 tablespoons of butter, salt, pepper and egg yolks. Fold the stiffly beaten egg whites into the mixture. Pour into a 2-quart greased casserole.

Combine the additional 2 tablespoons butter with the bread crumbs and sprinkle over the top. Bake in a preheated 350 degree oven for 30 to 40 minutes until well puffed and top is golden brown.