To a large bowl add the butter, sugar, salt, and baking soda.
Using an electric mixer, beat on high speed until fluffy and almost doubled in size, about 3 - 4 minutes.
Add the sour cream and mix well.
Beat in the eggs and vanilla extract - make sure they are fully incorporated.
Add the flour and mix on low speed until fully combined. Do not overmix.
Line a 9x5 inch (23x13 cm) loaf pan with parchment paper or spray with nonstick cooking spray. Note: Using cooking spray will result in a crisper, more golden crust.
Transfer the batter to the pan and smooth the top into an even layer.
Bake for 64 – 65 minutes until a toothpick inserted into the center comes out clean or with very few crumbs.
Cool in pan 10 minutes then transfer to a wire rack.
Let the cake cool for at least 30 minutes before slicing.
Video
Notes
How to make this recipe without an electric mixer:
You can make this recipe by hand using a whisk however it will take more time and energy to make. Note: Beating the butter until fluffy could take up to 4+ minutes.
Storage:
You can store this cake in an airtight container or wrap it tightly in plastic wrap.
I wouldn’t recommend wrapping it in foil because this cake sweats and will most likely stick to it and you may end up losing the top layer of it to the foil.
It will last up to 3 days (maximum) at room temperature and possibly longer in the fridge.