Prepare the draining setup

• Place a paper towel on a plate, doubling it if it is thin.

Spread the yogurt

• Spoon the Greek yogurt into the center of the paper towel.
• If you like, stir a little pitaya powder or spirulina powder into the yogurt to color it.

Wrap and press

• Gently fold the paper towel over the yogurt to cover it completely.
• Set the second plate on top to press it lightly, without adding extra weight.

Chill overnight

• Refrigerate the whole setup until the yogurt firms into a dry shell.