Dry ingredients: Combine flour, salt, and baking powder in a bowl
Put butter (room temperature) and sugar in kitchen aid mixture(This is not an affiliated link. Just what I used. You can use any other mixture tool)
Mix butter and sugar until its pale white and fluffy
Add eggs one at a time from side of the mixer
Put in vanilla extract
Slowly add the dry ingredients to batter altering with sour cream
In the mean time , preheat oven to 375 degrees F.
Spray or use brush to cover a 10 cup cake pan with vegetable oil. Also sprinkle a little bit of all purpose flour in the pan and cover the pan from inside with it. This is to make sure the cake does not stick once done, and comes out easily. But make sure you invert the pan and tap the excess flour out of the pan.
Put the prepared mixture (Step 6) in the pan.
Bake for 80-90 minutes. Carefully insert a cake tester (You can use a wooden stick or toothpick) It should come out clean when the cake is done.
Cool the cake on a wire rack for about 10-15 minutes before inverting on a tray to cool completely.