Preheat your oven to 350°F (175°C).

Line two large baking sheets with parchment paper or reusable silicone baking mats. This helps prevent sticking and encourages even baking.

Make sure your baking sheets are completely cool before placing the cookie dough on them. If you are baking multiple batches, allow the sheets to cool between batches so the dough does not begin spreading before it enters the oven.

Measure all the ingredients before starting. Softened butter should be pliable but not melted. If the butter is too warm, the cookies may spread too much and become thin.

Preparing everything in advance makes the process smoother and helps ensure that your Funfetti Christmas Cookies bake evenly.

Step 2: Combine the Dry Ingredients

In a medium mixing bowl, whisk together the all-purpose flour, baking soda, baking powder, and salt.

Whisking helps distribute the leavening agents evenly throughout the flour, reducing the risk of cookies that rise unevenly.

If your flour has compacted in its container, gently fluff it before measuring. Spoon the flour into your measuring cup and level the top rather than packing it down.

Set the dry mixture aside while you prepare the butter and sugar.

Accurate flour measurement is important because too much flour can make the cookies dry, thick, and crumbly instead of soft and chewy.

Step 3: Cream the Butter and Sugar

In a large mixing bowl, beat the softened butter and granulated sugar together using a hand mixer or stand mixer.

Mix for approximately 2–3 minutes, scraping down the sides of the bowl as needed. The mixture should become creamy, lighter in color, and slightly fluffy.

Creaming the butter and sugar incorporates air into the dough, helping create a pleasant cookie texture.

Avoid using melted butter for this recipe. Melted butter can change how the cookies spread and may produce a greasier dough.

If you are mixing by hand, use a sturdy wooden spoon and beat until the butter and sugar are thoroughly combined.

Step 4: Add the Egg, Egg Yolk, and Vanilla

Add the whole egg and extra egg yolk to the butter mixture. Beat until smooth and well combined.

Pour in the vanilla extract and mix again.

The extra egg yolk helps produce a richer flavor and a softer, chewier texture. Vanilla enhances the buttery sweetness and gives these Christmas sprinkle cookies their familiar sugar-cookie taste.

If you want a slightly more bakery-style flavor, add a small amount of almond extract. Use it sparingly because its flavor can quickly become stronger than the vanilla.

Scrape down the sides and bottom of the bowl to ensure that all the ingredients are evenly incorporated.

Step 5: Mix in the Dry Ingredients

Gradually add the flour mixture to the wet ingredients. Mix on low speed or stir with a spatula until the flour is just incorporated.

The dough should be soft and thick enough to scoop. If it appears slightly crumbly, add the optional tablespoon of milk and mix gently.

Avoid adding too much milk because excess liquid can cause the cookies to spread too much.

Do not overmix once the flour has been added. Excessive mixing can develop gluten and make the finished cookies tougher.

Stop mixing as soon as no large pockets of dry flour remain.

Step 6: Fold in the Christmas Sprinkles

Add the red, green, and white Christmas sprinkles to the cookie dough.

Use a spatula to fold them in gently until they are distributed throughout the mixture.

If you are adding white chocolate chips, fold them in at the same time.

Avoid vigorous mixing because some sprinkles may break apart or release their colors into the dough. Long jimmies are generally a reliable choice for maintaining bright, festive colors.

For an extra colorful appearance, reserve a small handful of sprinkles to press onto the outside of each dough ball before baking.

The dough should now look festive and ready to shape.

Step 7: Chill the Cookie Dough

Cover the bowl and refrigerate the dough for approximately 30–45 minutes.

Chilling helps the butter firm up, makes the dough easier to handle, and can reduce excessive spreading during baking.

It also gives the flour time to absorb moisture, helping create a more consistent texture.

If your kitchen is warm or the dough seems particularly soft, chill it for a little longer. If the dough becomes very firm, let it stand at room temperature briefly before scooping.

Although chilling times can vary depending on the temperature of your ingredients, do not skip this step if you want thicker, softer cookies with a more controlled shape.

Step 8: Shape the Cookies

Use a cookie scoop or tablespoon to portion the chilled dough into approximately 24 equal balls.

Roll each portion gently between your palms until smooth.

For a more colorful appearance, press a few extra Christmas sprinkles onto the outside of each dough ball. This helps make the red, green, and white colors more visible after baking.

Arrange the dough balls on the prepared baking sheets, leaving approximately 2 inches between them to allow for spreading.

If you prefer larger bakery-style cookies, make fewer, larger portions and increase the baking time slightly. Keep the dough portions as uniform as possible so that the cookies bake evenly.

Step 9: Bake the Funfetti Christmas Cookies

Place the baking sheets in the preheated oven and bake for approximately 9–12 minutes.

The edges should look set and lightly golden, while the centers may still appear slightly soft. Do not wait until the entire surface looks completely firm.

The cookies will continue to set as they cool on the baking sheet. Removing them while the centers remain slightly soft is one of the best ways to achieve a chewy texture.

If your oven has hot spots, rotate the baking sheet near the end of baking if necessary.

Avoid baking too many cookies on one tray because overcrowding can affect heat circulation and produce uneven results.

Step 10: Cool and Serve

Remove the cookies from the oven and let them rest on the baking sheet for approximately 5–10 minutes.

During this time, the edges will become firmer while the centers remain tender.

Transfer the cookies carefully to a wire rack to cool completely.

If you enjoy warm cookies, you can serve them slightly warm after they have rested long enough to hold their shape. The vanilla aroma and soft centers are especially delicious when the cookies are freshly baked.

Arrange the finished Funfetti Christmas Cookies on a festive platter, package them in decorative tins, or serve them with a glass of milk.

Their colorful appearance and soft texture make them an irresistible addition to any Christmas celebration.