Got the recipe from here. I followed the modified version. It was not too sweet yumz. I have reproduced the recipe below for my own future reference.
130g cake flour
½ tsp baking soda
½ tsp baking powder
130g cream cheese, at room temperature
135g butter, at room temperature (reduced to 100g)
145g castor sugar (reduced to 100g)
1 tsp grated lemon rind (increased to 2 tsp)
2 eggs, at room temperature
1 tablespoon lemon juice
Steps:
Preheat oven to 175 Degree C and line muffin pan with paper cups.
Sift cake flour, baking soda and baking powder into a mixing bowl. Set aside.
Cream butter and cream cheese until light and creamy for 8-10 minutes.
Add castor sugar and continue to mix until light and fluffy.
Beat in eggs, one at a time.
Stir in lemon rind and lemon juice.
Finally, fold in sifted flour into mixture.
Divide batter evenly into paper cups. Bake for 20 – 25mins or till an inserted skewer comes out clean.
Remove the pan from the oven. Rest for 10 minutes before removing the cupcakes from the pan. Cool on wire rack.