This recipe is my go-to holiday treat and the one my kids insist we make every December. I first developed these cookies during a frantic week of holiday baking when I wanted something that tasted rich and special but required minimal hands-on time. The secret is instant vanilla pudding mix folded into a brown sugar-scented dough: it keeps the cookies incredibly soft and gives them a tender, almost cake-like interior that stays moist for days. The addition of Christmas M&Ms and colorful sprinkles transforms each bite into something playful and festive, perfect for leaving out with a glass of milk for Santa.

What makes these particularly memorable is how they bring people together. I discovered this combination the first year I volunteered at a neighborhood cookie swap. My batch vanished first, and neighbors asked for the recipe on the spot. The texture — pillowy centers with lightly crisped edges — and the caramel-like depth from packed brown sugar create a comforting contrast to the bright chocolate candies. These are the cookies I take to school parties, cookie exchanges, and the ones I tuck into tins as gifts for friends.

Ingredients

• Unsalted butter (1/2 cup): Use room-temperature butter for even creaming; I prefer Plugrá or Land O'Lakes when available because of consistent texture. Softened butter helps trap air with the brown sugar, creating a light crumb.
• Brown sugar (3/4 cup, packed): Packed brown sugar adds moisture and a gentle molasses note. Dark or light brown sugar can be used; light brown yields a milder flavor while dark brown gives more caramel depth.
• Vanilla extract (1 teaspoon): Pure vanilla extract adds aromatic warmth. If using a cheaper imitation, consider adding a pinch more to boost flavor.
• Large egg (1): Brings structure and richness. Let the egg sit at room temperature 10 minutes before mixing to avoid chilling the batter.
• Instant vanilla pudding mix (1 box, 3.4 ounces): The binder that creates the pillowy texture — make sure it’s not the sugar-free variety, as that changes moisture and sweetness levels.
• Baking soda (1/2 teaspoon) and salt (1/4 teaspoon): Leavens slightly and balances sweetness; measure precisely for predictable rise and flavor.
• All-purpose flour (1 1/4 cups): Provides structure; spoon and level your measuring cup for accuracy to keep cookies tender rather than dense.
• Sprinkles (1/4 cup): Red and green or any color for a festive look — add just enough for color without overwhelming the dough.
• Christmas M&Ms (3/4 cup): Adds chocolate pockets and crunch. Use regular or holiday M&Ms; mini candies will distribute more evenly if you prefer smaller bursts of chocolate.

Instructions

Cream the butter and sugar: Cream 1/2 cup softened unsalted butter and 3/4 cup packed brown sugar in the bowl of a stand mixer fitted with the paddle attachment on medium speed for 2–3 minutes until light and slightly fluffy. Scrape the bowl down once so the mixture is uniform. This step aerates the dough for a lighter bite. Add egg and vanilla: Mix in 1 large room-temperature egg and 1 teaspoon vanilla extract until smooth, about 30 seconds. This combines fats and emulsifiers, creating a glossy base for the dry ingredients to integrate. Incorporate the pudding mix and leaveners: With the mixer on low, add one 3.4-ounce box instant vanilla pudding mix, 1/2 teaspoon baking soda, and 1/4 teaspoon salt. Mix just until combined — the pudding mix absorbs moisture and helps maintain softness during baking. Fold in flour and mix-ins: Add 1 1/4 cups all-purpose flour and mix until you see just a uniform dough. Avoid overmixing to prevent gluten development that would toughen the cookies. Gently stir in 1/4 cup sprinkles and 3/4 cup Christmas M&Ms by hand so they don’t break apart. Portion and chill: Scoop 2-tablespoon balls of dough onto a parchment-lined sheet. There’s no need to space them far apart — cover the tray and chill for at least 30 minutes. Chilling firms the fat, controls spread, and concentrates flavor for a thicker, chewier cookie. Bake: Preheat oven to 350°F (177°C). Place chilled dough balls about 2 inches apart on lined baking sheets. Bake for 9–11 minutes, watching for edges to just begin to brown while centers remain soft. For an even bake, rotate the tray halfway through if your oven has hot spots. Cool and store: Allow cookies to cool on the sheet for 5 minutes to finish setting, then transfer to a wire rack to cool completely. Store in an airtight container for up to 4 days at room temperature or freeze for up to one month.

Storage Tips

Store cooled cookies in a single layer or with parchment between layers in an airtight container at room temperature for up to four days. For longer storage, freeze fully baked cookies in an airtight freezer-safe container or bag for up to one month; thaw at room temperature for 30–60 minutes. If freezing dough balls, freeze on a tray until solid, then transfer to a bag — bake from frozen, adding 1–2 minutes to the bake time. To refresh slightly stale cookies, warm in a 300°F oven for 3–5 minutes to restore a just-baked texture.

Ingredient Substitutions

For a dairy-free version, substitute vegan butter and a dairy-free instant pudding mix, and choose dairy-free chocolate candies — note texture will vary slightly. To make these gluten-free, use a 1-to-1 gluten-free flour blend and ensure the pudding mix is gluten-free; expect a slightly different crumb and possibly shorter bake time. If you prefer less sweetness, reduce the M&Ms to 1/2 cup and omit the sprinkles. For extra chew, swap 1/4 cup of the all-purpose flour for an equal amount of bread flour.

Serving Suggestions

Serve warm from the oven with a chilled glass of whole or plant-based milk for a classic pairing. For a holiday platter, mix these with shortbread, ginger snaps, and chocolate-dipped pretzels for textural contrast. Garnish each plate with fresh rosemary sprigs for a festive look and subtle aroma. These also make excellent edible gifts: pack six to a dozen in a cellophane bag tied with ribbon and a handwritten tag.

Seasonal Adaptations

Swap sprinkles and candies to match different holidays: use pastel candies for Easter, orange and black for Halloween, or blue and white for a winter celebration. For winter warmth, stir in 1/2 teaspoon ground cinnamon or a pinch of nutmeg. In summer, fold in chopped dried cherries instead of M&Ms for a brighter fruity note. The base dough is flexible and adapts to flavors without losing its soft texture.

Meal Prep Tips

Prepare dough up to 48 hours ahead and keep chilled in the refrigerator; scoop dough into portioned balls and store covered to speed up baking on the day you need them. For cookie swaps or events, bake in batches and cool completely before layering in airtight tins with parchment. Label containers with baking dates, and include reheat instructions if gifting frozen or refrigerated cookies. Portioning with a 2-tablespoon scoop ensures uniform baking and attractive presentation.

These cookies have become a small ritual in my household — mixing with my kids, sneaking a warm one before dinner, packaging them for neighbors. They are easy to make, travel beautifully, and are consistently the first tin emptied at parties. Try them once and they’ll likely become a holiday standby in your home too.