Funfetti Birthday Cake Cookies
These soft and chewy Birthday Cake Cookies are loaded with colorful sprinkles in every bite. They bring all the fun of a classic funfetti cake into an easy homemade cookie recipe that works for birthdays, holidays, parties, and everything in between. The best part? You can switch up the sprinkle colors to match any celebration or season. Because honestly, cookies deserve a spot at the birthday table too.
Ingredients
- 1 cup (2 sticks) Unsalted butter Softened to room temperature
- ¾ cup Light brown sugar Packed
- ¼ cup Granulated white sugar
- 1 large Egg Room temperature
- 2 tsp Pure vanilla extract Or clear imitation vanilla for a paler dough
- ½ tsp Almond extract Optional but highly recommended
- 2 cups All-purpose flour Measured by weight (240g) or spooned and leveled
- 2 tsp Cornstarch Helps reduce spreading and adds chew
- ½ tsp Baking soda Make sure it's fresh
- ¼ tsp Sea salt Reduce to ⅛ tsp if using salted butter
- ¾ cup Rainbow jimmie sprinkles Avoid nonpareils or natural dye sprinkles to prevent bleeding
Instructions
- Cream the butter and sugars. Add the softened butter, brown sugar, and granulated sugar to the bowl of a stand mixer fitted with the paddle attachment (or use a hand mixer). Beat on medium-high speed for 2–4 minutes until the mixture is pale, light, and noticeably fluffy. Do not rush this step — it builds the air structure that gives the cookies lift and keeps them from going flat.2. Add the egg and extracts. Add the egg, vanilla extract, and almond extract (if using) to the creamed butter mixture. Beat on medium speed for about 1 minute until fully incorporated and smooth.3. Mix the dry ingredients. In a separate medium bowl, whisk together the all-purpose flour, cornstarch, baking soda, and sea salt until evenly combined. Whisking them together first ensures the leavening is evenly distributed throughout the dough.4. Combine wet and dry. With the mixer running on low speed, add the dry ingredient mixture to the wet ingredients gradually — no more than one cup at a time. Mix just until no flour streaks remain and a soft dough forms. Do not overmix.5. Fold in the sprinkles. Using a rubber spatula, gently fold the rainbow sprinkles into the dough. Use a light hand to avoid breaking the sprinkles or streaking color throughout the dough.6. Roll and chill. Scoop the dough and roll it into 1 to 1½ inch balls between your palms. Place them on a parchment-lined plate or tray. Refrigerate for 15–30 minutes to firm up the dough and slow spreading in the oven.7. Preheat and prep. Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper. Arrange the chilled dough balls about 2 inches apart on the prepared sheet.8. Bake. Bake for 9–11 minutes, until the edges look just set and the tops appear slightly underdone and puffy. Pull them out just before you think they look fully ready — they will continue to set as they cool on the pan. Do not overbake.9. Cool. Allow the cookies to rest on the baking sheet for 4–5 minutes before carefully transferring them to a wire cooling rack to cool completely. They will firm up and crinkle slightly as they cool — this is perfectly normal and exactly what you want.
Notes
- Roll by hand for best results. Rolling the dough into smooth balls by hand — rather than using a cookie scoop — produces rounder cookies that spread more evenly and crinkle beautifully after baking.
- Don't over-chill the dough. If your dough has been refrigerating for longer than 1 hour, let it sit at room temperature for about 10 minutes before baking. Dough that is too cold spreads too slowly and bakes up dome-shaped rather than flat and chewy.
- Underbake slightly, on purpose. These cookies should look not-quite-done when you pull them from the oven. The residual heat from the baking sheet finishes the job. Overbaked cookies lose that signature soft center.
- Choose your sprinkles wisely. Classic rod-shaped jimmies hold their color best. Nonpareils and naturally dyed sprinkles tend to bleed color into the dough during mixing and baking.
- Customize for any occasion. Red and green for Christmas, pastels for Easter, school colors for graduation, red and pink for Valentine's Day — one recipe, endless celebrations.
- To freeze baked cookies: Cool completely, freeze in a single layer for 1 hour, then transfer to a freezer-safe container for up to 3 months.
- To freeze raw dough balls: Freeze in a single layer, then store in an airtight container. Bake from frozen at 350°F for 11–13 minutes.
- Flat cookie fix: If cookies spread too much, your butter may have been too warm, your flour slightly under-measured, or your baking soda may be expired. Chill the dough and check your leavening before the next batch.