Preheat oven to 350 degrees F.

While the oven is preheating, cut the butter into smaller pieces and place in 9x13 inch pan. Place in preheating oven to melt (watch closely to make sure butter doesn't burn).

In a mixing bowl, add eggs, milk, and salt. Whisk together then add flour. Whisk.

Pour batter over butter (in the 9x13 inch pan).

Bake at 350 degrees F. for about 18 minutes or until the pancakes are puffed especially around the edges.