Separate the egg yolks and egg whites into two different bowls. Let both sit out until they reach room temperature.
6 Large Eggs
In a separate bowl, pour bourbon over raisins and set aside.
2 Tablespoons Bourbon, 1 Cup Raisins
Preheat oven to 350℉(180℃)
Combine flour, baking powder and salt in a bowl. Set aside for later
1 ⅔ Cups All-Purpose Flour, 2 teaspoons Baking Powder, ½ teaspoon Salt
Add the softened butter granulated sugar to the bowl of a stand mixer. Using the paddle attachment, mix on medium speed until the mixture is light and fluffy (2 - 4 minutes) , scraping the side of the bowl occasionally. Note - a hand mixer may also be used.
1 Cup Unsalted butter, 1 Cup Granulated sugar
Add bourbon to the mixing bowl and mix until combined.
1 Tablespoon Bourbon
Add 3 egg yolks to the bowl and mix until combined. Scrape down sides of mixing bowl.
Add the flour/baking powder/salt to the bowl and mix on low speed for one minute , scraping the side of the bowl occasionally (note: the batter will look dry).
Add the remaining 3 egg yolks to the bowl and mix on low speed until combined (note: the batter will be thick).
In a clean bowl, use a stand mixer or hand mixer with the whisk attachment to start beating the egg whites.
Once the eggs whites begin to turn frothy, slowly add 50 grams (¼ cup) of granulated sugar while mixing the egg whites.
¼ Cup Granulated sugar
Continue to mix until the egg whites are glossy and hold soft peaks. Soft peaks happen when you lift the beaters and the egg whites form peaks that hold their shape for a second, then gently fold over like a soft tip.
Stir ¼ of the egg whites into the Bundt cake batter.
Stir the bourbon soaked raisins into the batter.
Gently fold the remaining egg whites into the batter. Do not overmix else you may deflate the egg whites.
Pour the batter into the greased/floured bundt pan and smooth the top with a spatula.
Bake for 40 - 45 minutes or until a toothpick inserted in the center of the cake comes out clean. Note - if unsure if cake is done, insert an instant-read thermometer into the center of the cake. The internal temperature should be 200℉ (93℃)
Cool the cake for 5 minutes on a wire rack. After 5 minutes flip the pan upside down on the rack and allow to cool completely (approximately 1 hour).
Carefully lift the pan off the cake. The cake should release on it's own. If not, carefully loosen the sides using a knife or small spatula.
Using a pastry brush, generously brush the bourbon syrup around the cake. Optional - dust lightly with a few tablespoons of powdered sugar.
Enjoy!