Preheat oven to 350 degrees F. Cream butter and vanilla. Combine 6 tablespoons confectioners' sugar and flour; stir into butter mixture. Mix in walnuts. Roll dough into 1-inch balls, place on a cookie sheet. Bake for 12 minutes. Roll in remaining confectioners' sugar.
Preheat oven to 350 degrees F. Cream butter and vanilla. Combine 6 tablespoons confectioners' sugar and flour; stir into butter mixture. Mix in walnuts. Roll dough into 1-inch balls, place on a cookie sheet. Bake for 12 minutes. Roll in remaining confectioners' sugar.
Adapting baked goods containing high fat percentages requires respecting the physical properties of the substitute you choose. Substituting standard butter with plant-based stick margarine at a one-to-one ratio functions reliably because these alternatives retain enough emulsified water and solid fat to mimic the creaming behavior of dairy. Whichever lipid you select, beat it thoroughly with the vanilla extract until the mixture is exceptionally smooth before incorporating any dry components.
Preventing these confections from spreading flat or turning tough relies entirely on managing gluten development and oven temperature. Mixing the flour and confectioners' sugar directly into the creamed base just until blended stops the flour proteins from forming elastic strands that ruin the delicate, crumbly texture. Bake the molded one-inch dough balls at precisely 350 degrees Fahrenheit for 12 minutes, watching for a pale set rather than golden browning.
Applying the powdered sugar finish requires timing the temperature of the baked spheres to ensure proper adhesion without melting the coating into a sticky glaze. Rolling them once while warm lets the exterior fats slightly melt and anchor the initial layer, while a second roll after complete cooling provides that classic opaque white finish. Storing the finished pastries in an airtight container at room temperature preserves their distinct mouthfeel for up to one week.