Gluten-free, nut-free brownies (the best-ever) - George Eats

Ingredients

• 150 g butter
• 1 cup (220g) caster sugar (or 1/2 light brown and 1/2 caster)
• 3 extra large eggs ((45-55g per egg, weighed out of shell))
• 200 g dark cooking chocolate (I use 40-50%)
• 2 tablespoons (20g) Dutch processed cocoa
• 1 tablespoon freshly brewed espresso (or water)
• 1 tablespoon hot water
• pinch of fine salt
• 1/4 cup (40g) fine white rice flour
• 1/4 cup (30g) tapioca flour