Viennese biscuits with cocoa, butter cookies

Ingredients

• 3/4 cup softened butter
• 1/2 cup icing sugar
• 1 Tbsp cocoa powder
• 1 egg white
• 1.5 cups flour
• Hazelnut powder

Materials

• Piping bag

Preparation

• Mix the softened butter with the icing sugar and the cocoa powder.
• Add the egg white and mix well.
  
• Add the flour, and mix until the dough gets smooth.
• Using a piping bag, form little cookies on a baking tray. Sprinkle hazelnut powder on each biscuit.
  
• Bake 20 minutes at 350°F (180°C).
• There you are, your Viennese biscuits are ready!