Ingredients
Equipment
Method
Step-by-Step Instructions
- Preheat your oven to 350°F (175°C) and line a cookie sheet with parchment paper.
- Cream together room-temperature unsalted butter and granulated sugar until light and fluffy.
- Incorporate eggs and vanilla extract into the mixture, mixing until smooth.
- Mix dry ingredients: whisk together flour, baking soda, cream of tartar, and salt, then blend with butter mixture.
- Fold in the rainbow sprinkles gently with a spatula.
- Divide the dough into four equal portions; color three portions with gel food coloring.
- Gently swirl the colored portions together without overmixing.
- Scoop tablespoons of dough and roll them into balls; optionally coat with granulated sugar or sprinkles.
- Bake cookies for 10–12 minutes until edges are golden and centers appear slightly soft.
- Let cookies cool on the baking sheet for about 5 minutes before transferring to a wire rack.
Nutrition
Notes
Ensure ingredients are at room temperature for best results. Be gentle when mixing colors to preserve the swirl effect.
