Lemon Curd with muffin

So, I got a lot of cookbooks again, haha, for this month, I got about 15 more cookbooks (I count only the one that already arrived but more are on their way).[...]

170 g plain flour 1 1/2 teaspoons baking powder 70 g caster sugar 2 finely grated lemons , zest of 125 ml milk 1 egg , beaten 50 g butter , melted and cooled[...]

1 1/2 cups all-purpose flour 2 teaspoons baking powder 1/4 teaspoon sea salt 1/2 cup sugar 1 egg 1/2 cup plain yogurt 1/2 cup whole milk 5 tablespoons[...]

1 1/2 cups all-purpose flour 2 teaspoons baking powder 1/4 teaspoon sea salt 1/2 cup sugar 1 egg 1/2 cup plain yogurt 1/2 cup whole milk 5 tablespoons[...]

170 g plain flour 1 1/2 teaspoons baking powder 70 g caster sugar 2 finely grated lemons , zest of 125 ml milk 1 egg , beaten 50 g butter , melted and cooled[...]