Kue Selai Kacang

Bahan-bahan (40 porsi)

• 3 oz unsalted butter
• 2.3 oz fine sugar or caster sugar
• 2.3 oz brown sugar
• 1 large egg
• 8 oz creamy and salted peanut butter
• 6 oz all-purpose flour
• 1/2 tsp baking soda