1: On medium heat, warm up a cast iron or nonstick skillet.
2: In a bowl, whisk together the eggs, sugar, and vanilla.
3: Slice the bread into halves.
4: When the skillet is hot, melt the butter.
5: Dip each slice of bread into the egg mixture; allowing the excess to drip off.
6: Lay the pieces in the skillet and fry until the egg is cooked and browned; usually about 2 minutes per side.
7: Serve plain or with syrup.