Preheat your oven to 180°C/350°F, sprinkle the almond powder on a baking sheet and toast it for around 8 minutes. Keep an eye on it as it burns easily. Then set aside to cool.
In the meantime, in a medium-sized bowl whisk together the oil, milk, sugars, cornstarch, vanilla, baking soda, baking powder, salt and cinnamon.
Whisk in the slightly cooled almond powder and line the baking sheet with parchment or a silicone baking mat.
Stir in the flour and once it’s almost all incorporated, add in the oats and raisins and stir until an even dough forms. Avoid overmixing to prevent tough cookies.
Scoop 35-40 g balls onto the lined baking sheet and bake for 10-12 minutes until the edges are golden. They might look underbaked but avoid overbaking them as they’ll get too crunchy as they cool.
Let them set on the baking sheet for about 1 minute before transferring to a wire rack to cool completely.