Detailed instructions for making coffee walnut snowballs: An introduction to the method and techniques for making coffee walnut snowballs with related pictures - 25 grams of powdered sugar, 55 grams of unsalted butter, 80 grams of cake flour, 1/2 teaspoon of instant coffee powder, 1/8 teaspoon of salt, 1 teaspoon of hot water, 15 grams of crushed walnuts, powdered sugar...