Byron Bay Chocolate Chip Cookies

Bahan-bahan (12 porsi)

• 175 g / 12 1/2 tbsp unsalted butter (, softened (6.2 oz, Note 1 - softening tip!))
• 1/3 cup brown sugar ((light or normal, not dark))
• 1/3 cup white sugar (, caster / superfine)
• 1/8 tsp salt
• 2 egg yolks (, at room temperature (Note 6 for using leftover whites))
• 2 tsp vanilla extract/essence
• 1/2 tsp baking powder
• 1/2 cup rice flour ((sub with plain/all purpose flour, Note 2))
• 1 1/2 cups flour (, plain/all purpose)
• 200 g / 7 oz dark or semi-sweet chocolate block (, chopped into pretty small pieces (Note 3))