Preheat the oven

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

Mix the dough

• Combine the peanut butter, brown sugar, eggs and flour in a bowl.
• Add the vanilla, allspice, cinnamon and nutmeg if using.
• Mix until completely combined.

Shape the cookies

• Form the dough into small balls and place them on the baking sheet.
• Press a criss-cross pattern into each ball with a fork.
• Repeat until all the dough is used.

Bake

• Bake the cookies for exactly 8 minutes, no longer, no less.
• Let them cool slightly before removing from the sheet.