Beat together the eggs and milk until you have a creamy yellow mixture.
Whisk in the vanilla extract, salt, and cinnamon.
Rub about a teaspoon of bacon grease or cooking oil all over the top of your griddle.
Dip a slice of bread into the egg mixture, and immediately place it on the hot griddle.
Cook each side until the bread turns a nice golden brown, and then flip it over to cook the other side, letting it turn a nice golden brown, as well. It'll probably take about 3 to 5 minutes per side.
Repeat the above step for all of your bread slices. Tip: Keep them warm by placing them on a cookie sheet in a warm oven.
Serve the warm slices with butter and maple syrup. You can dust with powdered sugar if desired.