Crispy Swedish Cardamom Cookies

Bahan-bahan (50 porsi)

• 1 cup butter (softened (2 sticks))
• 1/2 cup sugar
• 1 egg
• 1/4 teaspoon baking ammonia (baker's ammonia)
• 2 & 1/2 cups flour
• 1/2 teaspoon salt
• 1 tablespoon cinnamon
• 1 & 1/2 teaspoons cardamom
• 1 egg (to brush the cookies with)