used two 18cm/7-inch loaf pans • pan size 18 × 9 × h 6cm (7'' × 3.5'' × h 2.4'') • bread flour • cake flour • baking powder • unsalted butter, room temperature but a little hard • granulated sugar • cottage cheese, pureed • milk • egg (about 50g, 1.8 oz) • frozen blueberries • walnuts, roasted, unsalted, chopped roughly •