Pastel Sugar Cookie Sandwiches

The first time I made these pastel sugar cookie sandwiches, it was a gray rainy Saturday and I desperately needed something cheerful to look at. I spent way too long getting the buttercream colors exactly right, mixing and remixing until I had the perfect soft pink, mint green, and buttery yellow. When they came together, something about those little colorful peaks peeking out from between the cookies made the whole kitchen feel like spring had arrived early.

Last spring I made three batches for my nieces birthday party and the kids went absolutely wild for them. My sister caught her daughter carefully choosing which color sandwich she wanted based on her outfit that day. These have become my go to whenever I need to bring something that makes people smile before they even take a bite.

Ingredients

• 2 ½ cups all purpose flour: This foundation creates a sturdy cookie that holds up beautifully to the filling without crumbling
• ½ teaspoon baking powder: Just enough lift to give the cookies a tender bite without spreading too thin
• ¼ teaspoon salt: Enhances all the flavors and keeps the cookies from tasting flat
• ¾ cup unsalted butter room temperature: Cold butter creates nightmares here, let it soften completely for the creamiest dough
• 1 cup granulated sugar: Sweetens the cookies while helping them crisp slightly at the edges
• 1 large egg: Binds everything together and adds richness to the crumb
• 1 teaspoon pure vanilla extract: Do not use imitation here, the real vanilla makes all the difference in a simple sugar cookie
• ½ cup unsalted butter room temperature: For the buttercream, again temperature matters for that silky smooth texture
• 2 cups powdered sugar sifted: Sifting prevents lumps that would ruin the buttercream consistency
• 1 ½ tablespoons milk: Just enough to make the frosting spreadable without making it too soft
• 1 teaspoon pure vanilla extract: A double dose of vanilla bridges the cookies and filling perfectly
• Pinch of salt: Balances the sweetness so the buttercream does not become cloying
• Pastel gel food coloring: Gel colors give you vibrant hues without adding liquid that could thin your frosting

Instructions

Whisk the dry ingredients together:

In a medium bowl combine the flour, baking powder, and salt until everything is evenly distributed

Cream the butter and sugar:

Beat on medium speed for 2 to 3 minutes until the mixture looks pale and fluffy, scraping down the bowl halfway through

Add the egg and vanilla:

Mix until completely incorporated, stopping to scrape the sides and bottom of the bowl

Combine the dough:

Gradually add the dry ingredients on low speed, mixing just until you no longer see streaks of flour

Chill the dough:

Divide in half, flatten into discs, wrap tightly, and refrigerate for at least 30 minutes, this prevents spreading

Preheat and prepare:

Heat your oven to 350°F and line two baking sheets with parchment paper

Roll and cut:

On a floured surface roll dough to ¼ inch thickness and cut rounds with a 2 inch cutter, placing them 1 inch apart on the sheets

Bake to perfection:

Bake for 8 to 10 minutes until edges just barely start turning golden, they should still look slightly underbaked in the center

Cool completely:

Let them sit on the baking sheets for 2 minutes before moving to cooling racks, warm cookies will melt the buttercream

Make the buttercream:

Beat butter until creamy then slowly add powdered sugar, milk, vanilla, and salt until smooth and fluffy

Add the colors:

Divide frosting into small bowls and tint each with a tiny amount of gel coloring, starting with less than you think you need

Assemble the sandwiches:

Spread or pipe buttercream on the flat side of half the cookies and top with remaining cookies

Set before serving:

Let the assembled cookies rest for 20 minutes so the buttercream firms up slightly

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My mom called while I was piping the buttercream and I got so distracted chatting that I accidentally made the pink layer twice as thick as the others. Those became the premium sandwiches that everyone fought over at the party.

Getting The Perfect Pastel Colors

The trick to truly soft pastel shades is using the absolute smallest amount of gel coloring possible. I dip a toothpick into the coloring gel and add just a tiny swipe at a time, you can always add more but you cannot take it back. Start with your buttercream pure white and build the colors slowly until they look like Easter eggs and neons.

Rolling Out The Dough

Keep a small bowl of flour nearby and dust your rolling pin and work surface frequently as you roll. If the dough becomes too soft or sticky, pop it back in the refrigerator for ten minutes, you will get the cleanest cuts when the dough is cold. Rotate the dough a quarter turn after every few rolls to keep it from sticking and ensure an even thickness across the entire surface.

Storage And Make Ahead Tips

The cookie dough discs can be wrapped and frozen for up to three months, just thaw overnight in the refrigerator before rolling and baking. You can also bake the cookies a day ahead and store them in an airtight container, then fill them the morning you need them. Once assembled, these are best eaten within three days, though I have never seen them last that long.

• If you are taking these somewhere, pack them in a single layer with wax paper between layers
• The unfilled baked cookies freeze beautifully for up to two months
• Let filled cookies come to room temperature before serving for the best texture

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There is something so satisfying about biting through that crisp sugar cookie into the cloud of buttercream inside. Hope these bring a little pastel joy to your kitchen too.

Recipe Q&A

→ How long should I chill the cookie dough?

Refrigerate the dough for at least 30 minutes before rolling. This step prevents the cookies from spreading too much during baking and ensures clean edges when cutting.

→ 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 cookies.

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

Use gel food coloring sparingly—start with a toothpick amount and gradually add more. Gel colors provide vibrant hues without thinning the buttercream consistency.

→ How should I store the finished sandwiches?

Keep assembled cookies in an airtight container at room temperature for up to 3 days. Layer between parchment paper to prevent sticking.

→ Can I freeze the cookie dough?

Wrap dough discs tightly in plastic and freeze for up to 3 months. Thaw overnight in the refrigerator before rolling and cutting.

→ What size cookie cutter works best?

A 2-inch round cutter yields proportionate sandwiches with substantial filling. Larger cutters may require longer baking time and more buttercream.