Mix powdered sugar with water or possibly juice of a lemon, each to taste. For smooth glazes it may be a little more liquid, for spraying it should be more solid. It is best to fill the icing into a freezer bag, cut a corner very tightly and squirt on decorations.
For red or green coloring, use the appropriate juice to mix instead of water. For a yellow color, dissolve saffron in the juice of a lemon before mixing.
Our tip: Use the young, tender spinach from the farmers’ market!