In a shallow pan, whisk together the eggs, heavy cream, cinnamon, and vanilla.
In another shallow pan, combine the Panko crumbs, 2 TBSP sugar, 1 tsp cinnamon and the 2 TBSP melted butter; combine until all coated and moist.
Melt 2 TBSP of butter over medium high heat.
Dip each slice of bread into the batter and then in the Panko mixture, covering completely.
Place in the buttered skillet, cooking about 5 minutes or so, careful as to not let the breading burn; add more butter and turn each piece. You may have to adjust the heat.
Place 2 slices each on each plate and serve with more butter and warm syrup.