4                     eggs
1 cup               milk
1 cup               all-purpose flour
1/3 stick           butter  
 
Pre-heat oven to 200 degrees celcius. Spray or wipe the sides of a 9-inch Pyrex pie pan with vegetable oil and add butter. Place in oven for 10 minutes (will get it sizzling, which is desirable, but do not burn). Put eggs in blender plus milk and whirl until well beaten. Add flour to blender and whip for 15 to 20 seconds at high speed. Pour mixture into the sizzling butter. Bake for about 25 to 30 minutes, when it will become puffed and golden.  Serve with a selection of toppings such as fresh lemon, powdered sugar, maple syrup, fresh fruit, Nutella or other.