Beat the cold egg white into very stiff snow, add a few drops of lemon juice (gives extra stability).
Half of the amount of sugar gradually pour in, while beating vigorously, continue beating until the mixture is firm. Fold in the rest of the sugar at once, continue beating vigorously until the mixture is very stiff, smooth and shiny. Use immediately. Using a piping bag or a cake syringe, squirt different shapes onto a baking sheet lined with baking paper.
You can also color small amounts with food coloring and sprinkle it onto the baking sheet as circles, hearts or pretzels - there are no limits to your imagination - then garnish with cookies, decorative pearls. When they`re done, it`s a different but delicious Christmas tree decoration.
Let it dry slowly in a preheated oven at a low heat of 100-120 degrees.
Depending on the size, 60-90 minutes. The meringues / meringues must NOT be browned.