Line a muffin pan with either paper liners or grease with butter and keep aside. Pre-heat the oven to 190°C.
In a bowl, sieve the flour, baking powder and baking soda together.
In another bowl, cream the butter till it turns pale and light. Add the sugar and beat again for a minute. Add yogurt, and vanilla extract and beat again till combined.
Add the dry ingredients to the wet mix in large spoonfuls mixing with a spatula or with a wooden spoon as you go. Stop mixing when no streaks of dry flour are visible.
Fold in the chopped strawberries and chocolate chips. You could save a few to add on top.
Fill the liners to about 3/4 mark and sprinkle the remaining chocolate-chips on the top of each muffin batter. Bake for 20-25 minutes or until a toothpick comes out clean.