Preheat the oven

• Preheat the oven to 175 °C (350 °F).

Mix the dough

• In a large bowl, add the sugar, peanut butter, vanilla and egg.
• Mix until everything is fully combined.

Shape the cookies

• Form the dough into cookies of the size you like.
• Place them on a baking tray lined with parchment paper.

Make the criss-cross pattern

• Press each cookie with a fork in a criss-cross pattern.

Bake

• Bake for 8 to 10 minutes at 175 °C (350 °F).

Cool and store

• Let the cookies cool for a couple of minutes.
• Store in an airtight container.