Bake at 170°C for 20 minutes
Combine rolled oats, cake flour, baking powder, and salt in a bowl and mix well.
Cut cold butter into small pieces, add it to the bowl, and use your hands to mix until the mixture becomes crumbly.
Add the egg, almond milk, and vanilla extract, and bring the dough together into a ball.
Fold chocolate chips into the dough evenly.
Flatten the dough thickly and cut into triangle shapes.
Bake in a preheated oven at 180°C for 20 minutes.