Scalloped Broccoli - cooking recipe

Ingredients

1 medium onion, minced
4 Tbsp. butter
4 Tbsp. flour
2 c. milk
1 egg yolk
1/2 can Parmesan cheese (about 4 oz.)
1/2 tsp. salt
1/8 tsp. pepper
2 pkg. broccoli
1/2 c. dried breadcrumbs
2 Tbsp. butter, melted

Preparation

Saute onion in butter.
Mix egg, milk and flour together.
Add to butter and onion.
Blend all the rest of ingredients except breadcrumbs and 2 tablespoons of butter (melted).
Pour into buttered casserole dish.
Sprinkle breadcrumbs on top and drizzle with melted butter.