Perfectly lemony and moist loaf, with a tart sweet lemon glaze. Freezes beautifully!
Preheat oven to 325 F. Spray an 8x4-inch loaf pan with baking spray and line with a piece of parchment paper that covers the bottom and long sides, with an inch or so extending past the top of the pan (these will be the "handles" to lift the loaf out of the pan).
In a separate bowl, whisk together well the flour, salt, baking soda and baking powder. With mixer on low, add the flour mixture to the butter mixture alternately with the sour cream, starting with 1/3 of the flour, 1/2 of the sour cream, 1/3 of the flour, last of the sour cream, then finally the last of the flour.