Best Eggnog French Toast Recipe - How To Make Eggnog French Toast

Ingredients

• 1 loaf brioche or challah bread (about 1 lb.; 455 g.), sliced 1" thick
• 4 large eggs
• 2 large egg yolks
• 1 1/2 c. (120 ml) eggnog
• 1 1/2 tsp. ground cinnamon
• 1 1/2 tsp. rum extract or 1/4 c. dark rum
• 1 1/2 tsp. pure vanilla extract
• 1 tsp. ground nutmeg
• Kosher salt
• 1/4 c. granulated sugar, divided
• 3 tbsp. unsalted butter, divided, plus more if needed
• Maple syrup, fresh berries, and whipped cream, for serving (optional)