Havrekjeks are traditional Norwegian oatcakes. The cookies are usually made with a combination of oats, flour, butter, milk, salt, sugar, and baker's ammonia. The butter is creamed with sugar, while the oats are mixed with flour, salt, and baker's ammonia.

Both are mixed with milk in order to make a sticky dough. The dough is rolled out and rounds are then cut out with a cookie cutter. The cookies are baked until they become brown on the edges, and they're then ready to be enjoyed. It's recommended to serve havrekjeks with geitost, a soft and sweet goat's milk cheese.