In a large shallow bowl, whisk together eggs, eggnog, cinnamon, and nutmeg.
Heat large skillet or griddle over medium heat and melt about ½ Tbsp butter.
Dredge each slice of bread into the eggnog mixture, making sure bread is fully coated.
Place bread slices on pan and cook about 3 minutes on each side, until golden brown. Add more butter to pan as needed.