HỒNG HẠNH

190g cake flour 1 tsp baking powder 1/2 tsp baking soda 1/2 tsp salt 1 tsp instant espresso powder 40g unsweetened cocoa 1 1/3 cups sugar, divided 60ml water, room temperature 113g unsalted butter, very soft 1 large egg 1 large egg white 240ml (nonfat) plain yogurt 2 1/2 teaspoons vanilla extract (divided) Preheat oven [...]