(2.1 oz, 1/2 us cup) bread flour • (2.1 oz, 1/2 us cup) cake flour • salt • salted butter • cold water • ※60g bread flour and 60g cake flour can be replaced with 120g all-purpose flour • (0.7 oz, 1.7 Tbsp) salted butter • (0.7 oz, 2.2 Tbsp) cake flour, or all-purpose flour • (5.6 oz, 7/10 us cup) soy milk, or milk • chicken broth • boiling water, for chicken broth • pepper •