Adjust oven rack to middle positions, preheat oven to 350°F, and spray a 10-inch tube or Bundt pan with nonstick cooking spray. Sprinkle the inside of the pan with coarse raw sugar; set aside.: When the oven warms to 350°F , there is an immediate, cozy warmth that fills the kitchen and signals baking is imminent. You should hear the click and steady hum of the oven once it reaches temperature. Spraying the pan and sprinkling it with coarse raw sugar helps the cake release and gives a crunchy sugared exterior, so be sure to coat evenly. A common mistake is skipping the sugar lining which can lead to sticking or a dull crust. I recommend placing the rack in the center so heat circulates evenly, and I test the oven with an oven thermometer if it runs hot or cool.
Cream the butter and shortening together using a hand mixer set on medium speed for 1 minute.: As you cream the softened unsalted butter and vegetable shortening , you’ll notice they lighten in color and become smoother. The sound will change to a softer, paddling hum as fats incorporate air. This step builds the structure so the batter can trap air and rise properly. Avoid overcreaming which can cause the batter to become too soft and collapse; one minute at medium is usually perfect. If the fats feel greasy or too warm, chill briefly before continuing.
Slowly add the granulated sugar while the mixer is set at medium-low speed. Set the mixer to medium-high and beat the sugar/butter mixture for 3 minutes.: Adding granulated sugar slowly lets the crystals interact with the fat, creating tiny pockets of air. You may hear a faint, whispering scraping as the sugar blends. After the sugar is incorporated, increasing to medium-high and beating for three minutes will produce a pale, fluffy mixture. The sensory cue is a noticeably lighter texture and a sweet, buttery scent. A common pitfall is rushing this step, which yields a denser crumb; patience here pays off.
Add the eggs, one at a time, beating until incorporated after each addition.: During this three minute beat, you should watch the mixture become visibly paler and somewhat fluffy. The batter will cling differently to the beaters, and the room will smell richly of butter and sugar. This aeration is crucial for creating lift without excessive leavening. If your kitchen is very warm, the fats may start to soften too much; pause and chill the bowl for a few minutes if the batter looks oily.
In a separate large bowl, whisk the flour, salt, and baking powder together.: As you add each egg , the batter becomes silkier and more cohesive. The emulsification that occurs is tactile, the mixture moving from grainy to smooth. Pause between eggs if the batter looks separated, scraping the bowl to ensure even integration. A common mistake is adding eggs too quickly which prevents proper emulsification and can lead to curdling. If this happens, add a spoonful of flour to stabilize before continuing.
Alternately add the flour mixture and the buttermilk in 3 additions, starting and ending with the dry ingredients. Beat just until incorporated after each addition.: Whisking all purpose flour , fine sea salt , and baking powder aerates the dry mix and distributes the leavening. You will see a uniform pale mixture without clumps, which helps avoid pockets of baking powder in the cake. The dry ingredients should smell neutral, and the texture should be light. Sifting is optional but can improve uniformity. Avoid adding wet ingredients to unmixed flour to prevent uneven rise.
Add the vanilla and almond extracts, beating just until incorporated.: Alternating flour and buttermilk builds a tender crumb by balancing hydration without overworking gluten. Start with dry, then wet, repeating until incorporated. The batter should look smooth and flow slowly from the spatula, not runny. Mixing just until combined is key; overmixing develops gluten and makes the cake tough. A telltale mistake is rushing and beating vigorously; instead, fold gently and stop when streaks disappear.
Pour into the prepared pan and smooth the top.: When you add vanilla and almond extract , the aroma shifts to a warm, fragrant note that makes it hard to resist licking the spoon. Only a few beats are needed to distribute flavor evenly. Overbeating here can cause the batter to deflate, so incorporate gently. If the flavor seems weak, check that extracts are fresh, as older extracts can fade.
Bake 70-90 minutes, or until a toothpick inserted in the middle comes out clean. The internal temperature should register 205°F in the middle of the cake on an instant-read thermometer.: Pouring the batter into the prepared pan should feel satisfying as the dense batter settles and levels. Use a spatula to smooth the surface so the cake bakes evenly. The batter will be thick and glossy, and any peaks should be smoothed for even browning. A common error is underfilling or overfilling; aim for the pan to be roughly three quarters full for proper rise. Give the pan a light tap on the counter to remove large air bubbles.
Transfer the cake to a metal cooling rack for 15 minutes. Invert and flip the cake over to its original position to cool completely on the cooling rack.: As it bakes, the kitchen will fill with a deep, buttery aroma and the top will color to a rich golden brown. You may hear a faint crackle as the crust sets. Use the toothpick test for doneness and aim for an internal temperature around 205°F , which ensures the center is fully set. Avoid opening the oven too early which can cause the cake to sink. If the top is browning too quickly, tent lightly with foil.
The cake is delicious as is or serve with your favorite toppings.: After baking, moving the pan to a cooling rack lets steam escape evenly, preventing soggy sides. The cake will relax and slightly pull from the pan edges. Wait fifteen minutes before inverting so the crumb firms up, reducing the chance of tearing. A common mistake is inverting too soon, which can cause breakage; patience yields clean release.
Once cooled, keep covered. The cake tastes even better the next day.: Inverting reveals the sugared crust and allows the cake to finish cooling upright, preserving its shape. The surface should feel warm but set. Cooling completely before slicing ensures neat slices that hold together. Cutting too early can make the crumb gummy, so resist the temptation to sample immediately.
The cake is delicious as is or serve with your favorite toppings: Sensory notes here include a tender crumb and a subtly crunchy sugared edge. I like a thin slice to appreciate texture, and if serving to guests, present it simply so the buttery flavor shines. Be mindful not to overload with wet toppings that could make slices soggy.
Once cooled, keep covered: Storing the cake covered preserves moisture and allows flavors to marry overnight, often improving taste. The cake will keep well at room temperature for several days if wrapped or in an airtight container. A common error is leaving it uncovered which dries the crumb; cover as soon as it reaches room temperature.