Pre-heat oven to 370℉/180℃. Line/grease your mini loaf tin. (You can cut long rectangles of your baking paper to allow you to lift the baked loaves out).
In a large bowl, or the bowl of a stand mixer, beat together the butter and sugar on high until light and fluffy - at least 3 minutes.
Add the eggs, lemon juice and lemon zest and beat again until all combined.
Add the flour, baking powder and poppy seeds. Fold together gently before adding in the milk and folding again.
Pour the batter into the lined loaf tins, filling to about 2/3rds full. Bake for 25 minutes, a skewer inserted should come out clean.
Whilst still warm, make the drizzle by combining the lemon juice and sugar and spooning over the mini loaves. Let cool before serving!