Name: Snickerdoodle Biscoff Sandwich Cookies
Prep time: 30 min
Cook time: 37 min
Total time: 97 min
Ingredients: 2 3/4 cupsall-purpose flour; 2 teaspoonsbaking powder; 1/2 teaspoonsalt; 1 1/2 cupsgranulated sugar; 1 cupbutterat room temperature; 2 large eggs; 2 tablespoonssugar; 2 teaspoonscinnamon; 3 tablespoonsunsalted butterat room temperature; 1/2 cupBiscoff Spread; 1 cupconfectioners’ sugarsifted; 1/2 teaspooncinnamon; 3 tablespoonsmilk

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These Snickerdoodle Biscoff Sandwich Cookies are the kind of treat that makes weeknights feel special and holidays feel deliberate. Classic snickerdoodle dough gets a little grown-up twist: a spiced Biscoff cinnamon filling tucked between two soft, slightly crisp cookies. It’s straightforward baking with a high return on comfort and flavor.

I developed this recipe to be practical in a busy kitchen: predictable dough, easy rolling, and a fuss-free filling that you can whip up while the cookies cool. The cookies keep their texture and the filling stays pleasantly spreadable, so you get consistent sandwiches every time.

Below you’ll find a complete shopping list, the precise ingredients, the step-by-step instructions exactly as written for the baking and filling, plus practical tips, swaps, and storage guidance so every batch turns out well. Read the “Do This Next” section before you start; it will save you time and a few common mistakes.

Shopping List

All-purpose flour — for the base of the cookie dough.
Baking powder and salt — leavening and balance.
Granulated sugar and extra for rolling — sweetness and the snickerdoodle coating.
Butter — for both dough and filling; soft but not melted.
Large eggs — structure and moisture.
Cinnamon — both in the roll coating and the filling.
Biscoff Spread — the flavor star in the filling.
Confectioners’ sugar — for a smooth, lightly sweet filling.
Milk — to adjust filling consistency.
Parchment paper or silicone baking mat — for baking sheets.

Ingredients

For the cookies:

2 3/4 cups all-purpose flour — provides the structure; measure by spooning into the cup and leveling for accuracy.
2 teaspoons baking powder — gives the cookies lift; fresh baking powder matters for rise.
1/2 teaspoon salt — balances sweetness and enhances flavor.
1 1/2 cups granulated sugar — sweetens and helps with browning; most goes into the dough.
1 cup butter (at room temperature) — for tenderness and flavor; should be soft enough to cream.
2 large eggs — bind and add moisture.
2 tablespoons sugar — reserved for the cinnamon-sugar coating; helps the cookie exterior crisp slightly.
2 teaspoons cinnamon — mixed with the 2 tablespoons sugar for the coating.

For the Biscoff Cinnamon Filling:

3 tablespoons unsalted butter (at room temperature) — creamed into the filling for richness and spreadability.
1/2 cup Biscoff Spread — adds spice and that distinct caramelized cookie flavor.
1 cup confectioners’ sugar, sifted — sweetens and stabilizes the filling; sifting prevents lumps.
1/2 teaspoon cinnamon — reinforces the cookie’s warm spice in the filling.
3 tablespoons milk — adjusts the filling to a light, spreadable consistency.

Snickerdoodle Biscoff Sandwich Cookies — Do This Next

Preheat oven to 350°F. Line a large baking sheet with parchment paper or a silicone baking mat; set aside.
In a bowl, sift together 2 3/4 cups all-purpose flour, 2 teaspoons baking powder, and 1/2 teaspoon salt; set aside.
In the bowl of an electric mixer fitted with the paddle attachment, place 1 cup butter (at room temperature) and 1 1/2 cups granulated sugar. Mix on medium speed until pale and fluffy, about 3 minutes. Add the 2 large eggs one at a time, mixing briefly after each and scraping the bowl as needed. Reduce mixer speed to low and gradually add the sifted flour mixture, mixing just until combined.
In a small bowl, stir together the remaining 2 tablespoons granulated sugar and 2 teaspoons cinnamon. Shape the dough into balls and roll each ball in the cinnamon-sugar mixture to coat. Place the coated dough balls on the prepared baking sheet, leaving space between them. Bake for 8–10 minutes, until the edges are golden. Let cookies cool on the baking sheet for 3 minutes, then transfer to a wire cooling rack and let cool completely before filling.
To make the Biscoff cinnamon filling: in the bowl of a stand mixer fitted with the paddle attachment, combine 3 tablespoons unsalted butter (at room temperature), 1/2 cup Biscoff Spread, 1 cup sifted confectioners’ sugar, and 1/2 teaspoon cinnamon. Beat on medium speed until smooth. Add 3 tablespoons milk and beat until the filling is light and fluffy, scraping the bowl as needed.
To assemble sandwiches, pair two cookies of similar size. Using a knife or small spatula, spread about a tablespoon of the Biscoff cinnamon filling on the inside of one cookie, then sandwich with the matching cookie.

What You’ll Love About This Recipe

These cookies combine the tangy warmth of a snickerdoodle with the caramel-spiced depth of Biscoff. The cookie itself is soft in the center with gently crisped edges; it’s familiar and comforting. Pairing that with a creamy, lightly spiced filling makes every bite a little indulgent without being cloying.

This recipe is forgiving. The dough is easy to handle, and the baking window is short—8–10 minutes—so you can bang out a batch quickly. The filling holds up well at room temperature for serving and spreads smoothly straight from the mixer.

Swap Guide

Butter: You can use salted butter if you prefer; omit the extra pinch of added salt in the dough if you like. The filling specifically calls for unsalted to control seasoning.
Biscoff Spread: If unavailable, a smooth cookie butter or speculoos alternative works, but expect slight flavor differences.
Milk: Any dairy or unsweetened plant milk (almond, oat) will thin the filling. Start with less and add until you reach the desired consistency.
Confectioners’ sugar: Powdered sugar is essential here for a smooth, stable filling. Granulated sugar won’t dissolve.

Essential Tools for Success

Must-haves

Electric mixer with paddle attachment — creaming the butter and sugar properly is key to texture.
Stand mixer (or hand mixer) for the filling — makes the filling light and smooth.
Baking sheets and parchment or silicone mats — prevent sticking and promote even browning.
Wire cooling rack — cooling the cookies completely before filling prevents the filling from melting.

Helpful extras

Cookie scoop — for evenly sized cookies and consistent baking times.
Small offset spatula or butter knife — for neat, even filling application.

Easy-to-Miss Gotchas

Watch the oven time carefully. Snickerdoodles go from pale to golden at the edges quickly; 8–10 minutes is the window. If you overbake, the sandwich will be crisp rather than tender.

Cool completely before filling. Warm cookies will soften the filling and can make the sandwiches slide or become greasy. Let the cookies reach room temperature on a wire rack.

Measure flour correctly. Too much flour yields dense cookies. Spoon and level or weigh for best results. Also ensure your baking powder is fresh; old leavening gives flat, heavy cookies.

Variations for Dietary Needs

Lower lactose: Use lactose-free milk in the filling and clarify butter or use a lactose-free butter alternative. Texture may vary slightly.
Vegan: This recipe is not vegan as written (eggs, butter, milk). If you want to experiment, consider a commercial egg replacer and vegan butter and use a vegan Biscoff-style spread; results will differ in texture.
Reduced sugar: You can reduce the granulated sugar in the dough slightly, but the coating and filling both rely on sugar for structure and balance. Expect changes to browning and texture.

Little Things that Matter

Room-temperature butter beats cold or melted butter for texture. It creams with sugar to trap air that makes cookies light. If your kitchen is cold, cut the butter into cubes and let it sit for 20–30 minutes, then press—don’t warm it beyond soft.

Sift confectioners’ sugar for an ultra-silky filling. Even small lumps will affect the final mouthfeel. Also, pairing cookies of similar size keeps sandwiches uniform and pleasing to look at.

Roll the dough balls firmly but not into large, compact spheres. Looser shaping gives a softer interior; denser shaping produces firmer cookies.

Storing Tips & Timelines

Short-term: Store assembled sandwich cookies in an airtight container at room temperature for up to 3 days. Keep them in a single layer, or separate layers with parchment to prevent sticking.

Refrigeration: If your kitchen is warm, you can refrigerate the assembled sandwiches for up to 1 week; allow them to come to room temperature before serving for the best texture.

Freezing: Unfilled cookies freeze well. Cool completely, freeze in a single layer until solid, then transfer to a freezer bag for up to 3 months. Thaw at room temperature and then assemble with freshly made filling. The filling itself freezes, but texture can change slightly—best to refill after thawing cookies.

Serve & Enjoy

Serve these sandwich cookies at room temperature. They pair beautifully with coffee, chai, or a simple glass of milk. For a small gathering, arrange them on a platter dusted lightly with cinnamon or chopped speculoos crumbs for visual interest.

They’re great warm-weather picnic fare if kept shaded and cool, and they travel well for potlucks when packed in a single layer with parchment separators. Make a double batch; they freeze well and are always worth having on hand for quick dessert or unexpected company.

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Snickerdoodle Biscoff Sandwich Cookies

Soft snickerdoodle cookies rolled in cinnamon-sugar and sandwiched with a Biscoff cinnamon filling.

Prep Time30

Cook Time37

Total Time1 37

Servings: 24 servings

Ingredients

For the cookies

2 3/4 cupsall-purpose flour
2 teaspoonsbaking powder
1/2 teaspoonsalt
1 1/2 cupsgranulated sugar
1 cupbutterat room temperature
2 large eggs
2 tablespoonssugar
2 teaspoonscinnamon

For the Biscoff Cinnamon Filling

3 tablespoonsunsalted butterat room temperature
1/2 cupBiscoff Spread
1 cupconfectioners’ sugarsifted
1/2 teaspooncinnamon
3 tablespoonsmilk

Instructions

Preheat oven to 350°F. Line a large baking sheet with parchment paper or a silicone baking mat; set aside.
In a bowl, sift together 2 3/4 cups all-purpose flour, 2 teaspoons baking powder, and 1/2 teaspoon salt; set aside.
In the bowl of an electric mixer fitted with the paddle attachment, place 1 cup butter (at room temperature) and 1 1/2 cups granulated sugar. Mix on medium speed until pale and fluffy, about 3 minutes. Add the 2 large eggs one at a time, mixing briefly after each and scraping the bowl as needed. Reduce mixer speed to low and gradually add the sifted flour mixture, mixing just until combined.
In a small bowl, stir together the remaining 2 tablespoons granulated sugar and 2 teaspoons cinnamon. Shape the dough into balls and roll each ball in the cinnamon-sugar mixture to coat. Place the coated dough balls on the prepared baking sheet, leaving space between them. Bake for 8–10 minutes, until the edges are golden. Let cookies cool on the baking sheet for 3 minutes, then transfer to a wire cooling rack and let cool completely before filling.
To make the Biscoff cinnamon filling: in the bowl of a stand mixer fitted with the paddle attachment, combine 3 tablespoons unsalted butter (at room temperature), 1/2 cup Biscoff Spread, 1 cup sifted confectioners’ sugar, and 1/2 teaspoon cinnamon. Beat on medium speed until smooth. Add 3 tablespoons milk and beat until the filling is light and fluffy, scraping the bowl as needed.
To assemble sandwiches, pair two cookies of similar size. Using a knife or small spatula, spread about a tablespoon of the Biscoff cinnamon filling on the inside of one cookie, then sandwich with the matching cookie.