Mix the flour, baking soda and salt in a bowl and keep aside.

Whisk the butter in a bowl with an electric whisker for 30 secs.

Add both the sugars to the butter and whisk for 2 mins. Or just enough to fluff the butter sugar mixture making sure the butter and sugar don’t separate.

Divide the batter into equal parts depending upon the number of colors you want. I divided the batter into 4 parts. I used green, pink and blue colors and left one part as white.

Add colors to the divided parts and half a teaspoon vanilla essence to each part and whisk for 15-30 secs or until the colors mix properly.

Keep the coloured butter in the refrigerator for 10-15 minutes. This won’t be needed if making cookies in winters. The idea is to not let the butter melt.

Divide the flour mixture into 4 parts and add each part to the coloured butter parts. Mix with hands.

Cover the cookie dough with cling film and refrigerate for 30mins.

Take out the 4 coloured doughs from the refrigerator and a take a fresh bowl. Using a spoon, take out small bites of the coloured doughs in the bowl and make balls using different colors. Also set the over to pre heat at 180 degrees Celsius.

Bake the cookies at 180 degrees for 9-10 mins or until you see them turning golden brown from the side. Do not exceed the time.

Take them out of the oven and keep them aside to cook a little more for 15mins. Overcooking inside the oven may burn your cookies.