4 thumbprint cookies icing Recipes

powdered sugar, water , just enough to make it spreadable, vanilla

butter, brown sugar, eggs, vanilla, all-purpose flour, salt, chopped walnuts, red currant jelly (i like to use icing made with powdered sugar & butter, flavored with chocolate or instant coffee) or 3 -4 tbsp raspberry jam (i like to use icing made with powdered sugar & butter, flavored with chocolate or instant coffee)

butter, softened, icing sugar, egg, separated, vanilla extract, all-purpose flour, salt, shelled pistachios, finely chopped, seedless raspberry jam (or other jam)