Cream butter and sugar until light and fluffy. Add vanilla and water. Sift flour with cocoa and stir in. Add nuts and mix well. Form into small rolls about 2" long and 3/4" in diameter. Bake on ungreased cookie sheet at 300° about 20 min. While hot, roll in powdered sugar. Cool and roll in powdered sugar again. Makes about 3 dozen small cookies.
