Sicilian Lemon Muffins

fortified british wheat flour 53.5% , sugar 16.5% , free range eggs 8.3% , rapeseed oil 5.1% , Lemon Curd 9.0% , water 2.5% , lemon zest 4.0% , buttermilk 1.6% , corn flour 1.3% , wheat starch 1.1% , whey powder 0.9% , Raising agent 0.8% , E450i 0.7% , dextrose 0.6% , tapioca 0.5% , Humectant 0.5% , palm oil 0.4% , lemon oil 0.4%