Pastel Sugar Cookie Sandwiches

The first time I made these pastel sandwich cookies, I was hosting a spring brunch and wanted something that felt like edible confetti. My kitchen counter looked like a pastel rainbow explosion with little bowls of pink buttercream, yellow frosting, and mint green filling everywhere. When my friend Sarah walked in, she just started laughing and said it looked like the Easter Bunny had a baking accident in my apartment.

Last spring, my niece insisted on helping me make these for her birthday party. She took her job as official buttercream taste tester very seriously, though I suspect more pink frosting ended up on her face than in the piping bag. Every time I make them now, I think of her tiny hands carefully placing sprinkles on each cookie like she was decorating precious gems.

Ingredients

• 2 ½ cups all-purpose flour: The foundation that gives these cookies their delicate crumb and perfect structure for sandwiching
• ½ teaspoon baking powder: Just enough lift to make the cookies tender without making them cakey
• ¼ teaspoon salt: Balances the sweetness and brings out the buttery flavor
• ¾ cup unsalted butter: Room temperature butter creates that perfect melt in your mouth texture
• 1 cup granulated sugar: Sweetens the cookies while keeping them crisp edged and soft centered
• 1 large egg: Binds everything together and adds richness
• 1 teaspoon pure vanilla extract: Classic flavor that pairs beautifully with any pastel frosting you choose
• ½ cup unsalted butter: For the buttercream, creating that silky smooth texture we all love
• 2 cups powdered sugar: Sifted to prevent lumps and give the frosting its signature sweetness
• 1 ½ tablespoons milk: Adjusts the consistency to perfectly pipeable
• 1 teaspoon pure vanilla extract: Rounds out the buttercream with warm comforting flavor
• Pinch of salt: A secret ingredient that makes the buttercream taste professionally made
• Pastel gel food coloring: Gel colors give vibrant shades without thinning your frosting

Instructions

Whisk the dry foundation:

In a medium bowl, whisk together the flour, baking powder, and salt until well combined. Set aside while you prepare the wet ingredients.

Cream butter and sugar:

Beat the butter and sugar on medium speed for 2 to 3 minutes until the mixture looks pale and fluffy. This step creates air pockets that make the cookies tender.

Add egg and vanilla:

Mix in the egg and vanilla extract until fully incorporated, scraping down the sides of the bowl to ensure everything is well combined.

Combine dough:

Gradually add the dry ingredients on low speed, mixing just until the flour disappears. Overmixing here will make tough cookies, so stop as soon as it comes together.

Chill the dough:

Divide the dough in half, flatten into discs, wrap in plastic, and refrigerate for at least 30 minutes. This firm dough is much easier to roll and cut cleanly.

Prep your oven:

Preheat oven to 350°F and line two baking sheets with parchment paper. The parchment prevents sticking and makes cleanup effortless.

Roll and cut:

On a lightly floured surface, roll one disc to ¼ inch thickness and cut rounds with a 2-inch cookie cutter. Place them 1 inch apart on the prepared sheets.

Bake to perfection:

Bake for 8 to 10 minutes until the edges are just beginning to turn golden. Let cool on the sheets for 2 minutes, then transfer to racks to cool completely.

Make buttercream:

Beat the butter until creamy, then slowly add powdered sugar, milk, vanilla, and salt. Beat until smooth and fluffy, about 2 minutes.

Create pastel magic:

Divide the buttercream into small bowls and tint each with a different pastel gel food coloring. Start with a tiny amount because gel colors are concentrated.

Assemble sandwiches:

Spread or pipe a generous layer of buttercream onto the flat side of half the cookies. Top with remaining cookies and press gently to spread the filling to the edges.

Set and serve:

Let the cookies set for 20 minutes so the buttercream firms up slightly. They are easier to handle and the flavors have time to meld together.

Save

These became my go-to contribution for baby showers and birthday parties after I brought them to my coworker's spring celebration. She saved one cookie to take home because she said it was too pretty to eat, then texted me the next morning admitting she ate it at midnight standing in her kitchen.

Making The Perfect Pastels

I have learned that less is definitely more when working with gel food coloring for that soft pastel look. Start with the tiniest dot on a toothpick and mix thoroughly before adding more. The colors develop as they sit, so what looks too light initially often ends up being perfect after a few minutes.

Cookie Assembly Tips

Pair cookies by size before filling to ensure your sandwiches match up evenly. I sort them into piles of similar sizes, which makes the final assembly much faster and the finished cookies look more professional. A small offset spatula helps spread the buttercream right to the edges without smearing.

Flavor Variations To Try

While vanilla is classic, these cookies are a perfect canvas for other flavors. I once made lemon cookies with lavender buttercream that disappeared in record time at a garden party.

• Swap vanilla extract for almond in both cookie and frosting
• Add lemon zest to the dough for bright citrus notes
• Mix a teaspoon of raspberry jam into pink buttercream for fruitiness

Save

There is something undeniably joyful about biting into these little pastel clouds, and I hope they bring as much color to your kitchen as they have to mine.

Recipe FAQs

→ How long should I chill the cookie dough?

Refrigerate the dough for at least 30 minutes wrapped in plastic. This prevents spreading during baking and ensures the cookies maintain their shape while developing a tender texture.

→ Can I make the buttercream ahead of time?

Yes, prepare the buttercream up to 2 days in advance and store in an airtight container at room temperature. Re-whip briefly before assembling the sandwiches for the best consistency.

→ What's the best way to achieve pastel colors?

Use gel food coloring rather than liquid, starting with a tiny amount on a toothpick. Gel colors provide vibrant hues without thinning the buttercream. Pastel shades require just one or two drops per bowl.

→ How should I store the assembled sandwiches?

Keep in an airtight container at room temperature for up to 3 days. Avoid refrigeration as this can cause the cookies to become stale and the buttercream to harden.

→ Can I freeze these cookie sandwiches?

Freeze unfilled cookies for up to 3 months in freezer bags. The buttercream-filled sandwiches can be frozen for 1 month—wrap individually in plastic wrap and place in an airtight container. Thaw at room temperature.

→ What other flavors work well in the buttercream?

Almond, lemon, orange, or coconut extract beautifully complement the sugar cookies. You can also add fruit zest or melted white chocolate for additional flavor dimensions.