Preheat oven to 325°F and grease or line a 9x5 loaf pan with parchment paper and set aside.
In a large bowl, beat the butter with an electric mixer on medium to medium-low speed until smooth. Add the sugar and mix until light in color (2 minutes).
Add the eggs, one at a time and mix until just combined (10-15 seconds).
Add the sour cream and vanilla extract and mix just until smooth, don't re-whip the batter.
In a separate bowl, whisk the flour, sea salt, and baking soda together. Add the flour mixture to the wet ingredients and mix until just combined.
Pour pound cake batter into the prepared loaf pan and gently smooth out the top. Carefully tap the loaf pan on the counter 3-4 times to release any air bubbles in the batter.
Bake loaf for 65 minutes at 325°F until the center is set and a toothpick inserted in the center comes out clean.
Allow the pound cake to cool in the pan for 15 minutes before transferring it to a wire rack to cool completely.
Store leftover pound cake in an airtight container in the fridge for 5 days or freeze for up to 3 months.
Notes
Use room temperature butter, eggs, and sour cream for a smooth batter.
Cream butter and sugar well (2 minutes) for the best texture.
Do not overmix once flour is added.
Make sure to tap the filled loaf pan on the counter a few times to release any air bubbles.
Cake is done when a toothpick comes out clean (don’t underbake).
A crack on top is normal.
Add 1/2 tsp almond extract with the vanilla for extra bakery-style flavor.