• Preheat the oven to 350 degrees.
• Get three separate mixing bowls out. Separate the egg yolks and egg whites into separate bowls.
• In the first bowl, add the egg yolks and the 3/4 cup of sugar. Using a hand mixer or whisk, beat the egg yolks with the sugar for 5-6 minutes until the sugar is dissolved.
• Stir in the vanilla extract and milk until just combined. the mixture should be smooth and creamy. Set this aside.
• In the second bowl, add the flour, baking powder, and salt and stir until combined. Pour the egg yolk mixture into the dry ingredients and fold them in gently until combined. Set this aside.
• Whip the egg whites in the third bowl for about one minute. Begin to add in the 1/4 cup of sugar a little at a time. Whip the egg white and sugar mixture until soft peaks are formed, about 4-5 minutes.
• Pour the egg white mixture into the cake batter and gently fold it together. Fold the mixture gently until it is combined, being careful not to over mix and lose the air bubbles.
• Pour the cake batter into a 9x13 baking dish. Place it in the preheated oven and bake for 40-45 minutes. Poke a toothpick in the middle of the cake, if the toothpick comes out dry, it is done.
• While the cake is cooling, make the whipped cream and combine the eggnog and bourbon (optional).

Whipped Cream & Eggnog

• Add the heavy cream and 1/4 cup eggnog to a bowl and mix on high for 4-5 minutes. It will be ready when soft peaks are formed. Begin adding in the powdered sugar a little bit at a time. Stir to combine, and refrigerate for at least 10 minutes.
• Pour the eggnog in a separate bowl or cup. Add the bourbon directly into the eggnog and stir to combine. Refrigerate until ready to use.

Assemble the cake

• Once the cake has cooled down, use a fork to poke holes all over it. Take the eggnog and bourbon mixture and pour it all over the cake. Be sure to cover every piece.
• Top the cake with whipped cream, and spread it out evenly. Sprinle the top with the cinnamon.
• Serve a slice with additional eggnog to pour over the top if desired. Enjoy!