Slice the loaf into thick slices that are between 1/2 and 3/4 inch thick.
Whisk everything together for the egg mixture until it’s smooth and set it aside.
Preheat a large cooking pan over medium heat and lower the heat to medium-low so the outside of the bread doesn’t cook faster than the inside. Grease the pan with a little oil.
Dip each side of the bread into the egg mixture and cook for 3-4 minutes on each side. Depending on the size of the pan, you may need to cook it in batches of 3 or 4 slices at a time.
To keep cooked French Toast warm, preheat the oven to 250° and keep it in the oven while the rest is cooking.
Notes
*Adjust sweetness: Brioche and eggnog already have sugar added so both ingredients are sweetened. It can be a personal preference to add more sugar to the egg mixture or not.
Lactose free and dairy free: There are several dairy free and lactose free options on the market. There are almond milk, coconut milk, oat milk, and simply dairy free holiday nog options.
Briochebread is the best for French toast! It's so soft and fluffy and it does the very best job at soaking up the egg mixture. Brioche also has a sweet and buttery flavor, which greatly compliments the eggnog flavor. French Baguette is the second best option. Coming in third is challah, which also works well, but is denser and drier than the other options.