Sift the flour with the baking powder in a large bowl and set aside until needed.

In the mixer bowl, combine the butter, sugar, and vanilla, and beat with the paddle attachment very well for about 10 minutes. We want the butter to become very fluffy and light.

Next, add the eggs one at a time, waiting for each to be fully incorporated before adding the next.

In a small glass, mix the brandy with the baking soda and stir well to dissolve.

Add this to the mixer and beat for another 3 minutes.

Pour the mixture from the mixer into the bowl with the flour and mix initially with a spatula and then with your hands. Do not knead too much as this will make the cookies hard. We just want the flour to be incorporated into the butter mixture.

Place the cookies on a baking sheet lined with parchment paper and bake in a preheated oven at 350°F for about 20 to 30 minutes until they are lightly colored!