Preheat the oven to 200C/180C Fan/Gas 6. Line a 6 hole muffin tin.
In a large bowl, combine the dry ingredients (flour, baking powder, sugar and lemon zest).
Make a well, and pour in the liquid ingredients (lemon juice, milk, butter, oil and egg). Stir gently with a wooden spoon until just combined.
Scoop the batter evenly into each muffin hole.
Add 1 Tsp Lemon Curd to the top of each muffin. Bake for 16-20 minutes - until golden on top.
Let cool on a wire rack before topping with a dusting of icing sugar!