Preheat Oven: Preheat oven to 350°F (175°C). Grease and flour a 9x5-inch loaf pan or line with parchment paper.
Cream Butter and Sugar: In a large bowl, cream butter and sugar together until light and fluffy, about 3–4 minutes.
Add Eggs and Vanilla: Beat in eggs one at a time, then stir in vanilla extract.
Combine Dry Ingredients: In a separate bowl, whisk together flour and salt. Gradually add dry ingredients to the butter mixture, alternating with milk, beginning and ending with flour. Mix until just combined.
Transfer to Pan: Pour batter into prepared loaf pan and smooth the top with a spatula.
Bake: Bake for 60–70 minutes, or until a toothpick inserted into the center comes out clean. Check at 50 minutes and cover loosely with foil if the top is browning too quickly.
Cool: Allow cake to cool in the pan for 10–15 minutes, then transfer to a wire rack to cool completely before slicing.