Preheat oven to 250°.
Add eggs, eggnog, vanilla extract, cinnamon, and nutmeg to a shallow dish and whisk until completely combined.
Place a pat of butter into a skillet to melt.
Dip the bread into the egg mixture for about 10-15 seconds per side, pressing down slightly so that the slices soak up the liquid.
Working in batches, add 2-3 slices of bread to the melted butter in the skillet.
Cook on medium-low heat until each side of the bread is toasty and brown.
Place cooked slices of french toast on a small cookie sheet or piece of foil and place them in the preheated oven to stay warm.
Serve with butter, sour cream, cranberry syrup, and granola.