To prepare the cake, start by preheating the oven to 350 degrees F.
In a medium bowl, whisk together flour, baking powder, cinnamon, and salt. In a separate bowl, combine bourbon, milk, and vanilla, and don't worry if it looks a bit clumpy.
Begin by placing the butter and coconut oil in a stand mixer with a paddle attachment. Cream them for a minute until they become fluffy. Next, add 1 3/4 cups of granulated sugar and beat for another minute until you achieve a fluffy texture. Then, incorporate the egg yolks one at a time, making sure to mix thoroughly after each addition. Gradually add the dry ingredients in four separate batches, alternating with the wet mixture. Start and finish with the dry ingredients. Finally, gently stir in the pecans.
To create a delightful batter, start by using a stand mixer with a whisk attachment in a clean bowl. Whip the egg whites and cream of tartar on medium until they reach soft peaks. Gradually sprinkle in the remaining 1/4 cup of granulated sugar and continue whipping for approximately 5 minutes until stiff peaks are achieved. Finally, fold the egg whites into the batter in thirds for a perfect finish.
After pouring the mixture into a bundt pan, bake for 55-60 minutes until a cake tester comes out clean. Allow it to cool before turning the cake out of the pan.
To prepare the glaze, take a medium bowl and combine confectioners' sugar, bourbon, and 2 tablespoons of water. After the cake has cooled, drizzle the glaze over it and generously sprinkle with chopped pecans.