Passionfruit Strawberry Muffin

I need to de-stress and one way  to do it is to start doing something I enjoy : baking. However, there's always a danger to that because if my cake did not turn out well, instead of de-stressing, I'll be blowing my top over the failed attempt. I guess the Gods must be watching me, taking pity of my miserable days in office, thus making my baking attempt successful. I'm not a fan of muffin but I like to bake muffins because it's a melt and mix method. The recipe was picked from one of the books I've recently purchased from BBW. Instead of following diligently on the recipe, I replaced the fruits with passionfruit and strawberry.  I'm posting the original recipe while those in bracket were my modification.

Both cousin Soo and I were too caught up in our work today that neither of us remembered that one of us have to do the delivery/collection. I ended up eating 2 muffins today and gave a few to my colleagues. Oh yea...and so much for packing the muffins in a cute lovely box. I don't care; I need to recycle this box.

Ingredients:
2 cups all purpose flour
1 tbsp baking powder
1/2 tsp baking soda
1/8 tsp salt
1/2 cup superfine sugar
2 large eggs
1 cup plain yoghurt (I used 1 standard cup of Anlene yoghurt with berries flavor)
6 tbsp melted butter
finely grated rind of 1 lemon (I used 2 passionfruits)
finely grated rind of 1 lime (I used a few strawberries, cut smaller size)
finely grated rind of 1 orange ( I omit this)

Method:

1. Preheat oven to 200C. Grease 12 cup muffin pan or line with 12 muffin paper liners. Sift together the flour, baking powder, baking soda and salt into a large bowl. Stir in the superfine sugar.
2. Lightly beat the eggs in a larger bowl then beat in the yogurt, melted butter and all the citrus rind. Make a well in the center of the dry ingredients and pour in the beaten liquid ingredients. Stir gently until just combined. Do not overmix.
3. Spoon the batter into the prepared muffin pan. Bake in the preheated oven for about 20 mins, until well risen, golden brown and firm to the touch.
4. Let the muffins cool in the pan for 5 mins, then transfer to a wire rack and let cool completely.