1. Add the butter and sugars to a large bowl and mix on high speed until light and fluffy. Add the egg and vanilla extract and mix until well incorporated. Mix the flour with cinnamon, baking powder, and salt and add to the mixing bowl. Mix until just combined. Add the rolled oats and raisins and fold in. Place the dough in the fridge for about 20-30 minutes.

 

2. Preheat the oven to 350°F (180°C). Line a baking sheet with baking parchment. Use a cookie scoop or spoons to place dough portions on the baking sheet and flatten them slightly – leave enough space in between because they will spread a bit. Bake for 10-12 Minutes until the edges are slightly golden in color. Take out of the oven and let cool down a bit on the baking sheet, then transfer to a wire rack to cool down completely. Repeat with the remaining dough.