Lady Bird Johnson's Spoon Bread

3 cups milk
3 eggs
1 cup cornmeal
butter (the size of a walnut)
3 level teaspoons baking powder
1 level teaspoon salt

Stir cornmeal into 2 cups of milk and let mixture come to a boil, making a mush. Remove from heat and add balance of milk and well-beaten eggs. Stir in salt, baking powder and melted butter. Bake in 2-quart greased casserole dish for 30 minutes at 350 degrees.