Preheat your oven to 350°F (175°C). While it warms, grease and flour your loaf pan.

In a large mixing bowl, whisk together all-purpose flour, granulated sugar, baking powder, and poppy seeds.

In another bowl, cream together the unsalted butter and granulated sugar until light and fluffy. Beat in eggs one at a time, then mix in the lemon zest and juice.

Gradually fold the dry ingredients into the wet mixture, alternating with the milk. Mix gently until just combined.

Pour the batter into the prepared loaf pan and bake for 50-60 minutes, or until a toothpick inserted into the center comes out clean.

Let the cake cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.

Optionally, drizzle with a lemon glaze for extra zing.