Preheat oven to 350°F (175°C).
Line a baking sheet with parchment paper.
2. Mix Dry Ingredients:
In a medium bowl, whisk together flour, baking soda, and salt.
Set aside.
3. Cream Butter and Sugars:
In a separate large bowl, beat butter, granulated sugar, and brown sugar until light and fluffy.
Add eggs one at a time, mixing well after each addition.
Stir in vanilla extract.
4. Combine Wet and Dry Mixtures:
Gradually add the dry ingredients to the wet mixture, stirring until just combined.
5. Color the Dough:
Divide the dough into four equal portions.
Tint each portion with a different pastel gel food coloring (pink, purple, yellow, and blue), mixing gently until evenly colored.
6. Form the Cookies:
