Preheat oven to 375 degrees. Combine ground almonds and sugar. Blend in butter. Add dry ingredients. Add water and blend well. Shape into a flattened ball. Wrap in parchment and chill at least half hour. Roll out onto lightly floured board until approximately 1 cm thick. Cut into desired shapes, and place on parchment covered baking sheet about 5 cm apart. Bake until golden brown. Cool. Sandwich with strained or seedless jam (raspberry is great!) or chocolate ganache.