Preheat a griddle to medium-high (or 375°F). In a large bowl, whisk together eggs, milk, vanilla, and ground cinnamon.

Once the griddle is hot, lightly coat the griddle with oil and melt a little butter on top and spread around. Submerge the bread in the egg mixture, one slice at a time, pressing each side down for 5 seconds, and allowing excess egg mixture to drip off back into the bowl. Place bread onto the griddle and fry, flipping as needed, until golden brown on both sides, about 5 minutes per side.

To serve, place French toast on a platter and dust with powdered sugar. Top with maple syrup and fresh fruit or other toppings as desired.