These cookies take just a few ingredients and are quick to make, they will only take 20 minutes.
Mix the dry ingredients in a large bowl, add the eggs, vanilla and oil and mix with a fork, it should be a mouldable but not sticky dough, if it is too dry add a few tablespoons of water, if it is too sticky add a little more cornstarch. Leave in the refrigerator for 5 minutes.
Preheat the oven to 220°C
On a floured surface knead the dough with the help of a kneading stick to a thickness of half a centimeter. Cut circles of about 5cm in diameter and bake on a baking sheet with parchment paper for 10-12 minutes or until they begin to brown. Let cool
Finely chop the chocolate and melt it in the microwave for 30 to 60 seconds, mix with a spatula or spoon, add the milk and mix again. Put in a pastry bag and put about a tablespoon of mixture on half of the cookies, put another cookie on top and press a little. Cool 5 to 10 minutes before eating.
*You can use an Orgran type egg replacement, or prepare one with 1 teaspoon of flax flour and 3 tablespoons of water for each egg, mix and let stand 15 minutes.