Place the raisins in a small vessel and pour boiling water over them - adjust the amount of water so that all the raisins are covered. After a moment, rinse the raisins, drain them on a sieve from excess water and chop finely.

In a bowl, place the oat flakes, flour, raisins, sunflower seeds, and sweetener. Mix.

Then crack in the egg. Mix and crush thoroughly with a spoon until the ingredients are combined. If necessary, add a little water (the mixture should stick together but should not be too wet).

Use a spoon to form and lay out the cookies on a baking sheet lined with baking paper. Put in the oven preheated to 170°C for about 15-20 minutes (depending on the size of the cookies and the power of the oven). Check occasionally to ensure the cookies are not over-browning. Remove from the oven when they are lightly browned.

Eat warm or cold. Store in a tightly sealed container.