Soak the poppy seeds in 50 ml milk.
Melt the butter, let it cool.
Preheat the oven to 190°C. Line a muffin tin with paper cases.
In a large bowl, mix the flour, sugar and baking powder .
In another bowl, beat the eggs slightly and add the remaining milk, orange zest and juice, then stir in the melted butter and poppy seeds soaked in milk.
Add the egg mixture to the flour, gently combine.
Fill the muffin cases with the batter.
Bake the muffins for about 20-25 minutes, until golden then transfer them to a wire rack to cool.