Lemon Sandwich Cookies with Curd

The kitchen smelled like sunshine the first time I made these lemon cookies—my roommate walked in and immediately asked what bakery I'd visited. When I told her they were gluten-free and vegan, she didn't believe me until I showed her the empty flour bag.

I brought a batch to my sister's summer picnic last year, and they disappeared faster than the store-bought cookies someone else brought. Watching my niece lick lemon curd off her fingers convinced me these deserved a permanent spot in my baking rotation.

Ingredients

• Gluten-free all-purpose flour blend: This forms the structure of your cookie—choose a blend with xanthan gum already added for best results
• Almond flour: Adds moisture and a subtle nutty sweetness that balances the bright lemon
• Solid coconut oil: Keep it cold and work quickly—this creates those tender, melt-in-your-mouth layers
• Cane sugar: Sweetens the cookie while letting the lemon shine through
• Lemon zest: This is where the real lemon flavor lives—use a microplane and zest gently to avoid the bitter white pith
• Fine sea salt: Enhances all the flavors and balances sweetness
• Baking powder and baking soda: Work together to give these cookies their subtle rise
• Plant-based milk: Helps bring the dough together without making it too wet
• Fresh lemon juice: Use this in the dough and the curd—bottled juice can't match the brightness of fresh-squeezed
• Vanilla extract: Rounds out the sharp citrus notes with warm undertones
• Fresh lemon juice for curd: You need about 2-3 lemons total for both cookies and curd
• Cornstarch: This thickens your curd into that perfect spreadable consistency
• Full-fat coconut milk: Creates the silky, creamy texture in the lemon curd
• Turmeric: Just a pinch gives the curd that gorgeous golden hue without artificial food coloring
• Vegan butter or coconut oil: Finishes the curd with a glossy shine and richness

Instructions

Get your oven ready:

Preheat to 350°F and line two baking sheets with parchment—this prevents sticking and makes cleanup effortless

Mix the dry ingredients:

Whisk both flours, sugar, lemon zest, salt, baking powder, and baking soda in a large bowl until everything is evenly distributed

Cut in the coconut oil:

Use a pastry cutter or fork to break the solid coconut oil into the flour until you see coarse crumbs—work quickly so the oil stays cold

Combine the wet ingredients:

Whisk the plant-based milk, lemon juice, and vanilla in a small bowl, then pour into your dry mixture

Form the dough:

Stir gently until a soft dough forms—it will be slightly sticky but should hold together when pressed

Shape the cookies:

Roll into 24 balls, flatten to about 1/4 inch thickness, and space them on your prepared baking sheets

Bake to golden perfection:

Bake 10-12 minutes until edges just start turning golden—underbaked slightly is better than overbaked for these tender cookies

Start the lemon curd:

While cookies cool, whisk lemon juice, zest, sugar, and cornstarch in a saucepan until no lumps remain

Cook the curd:

Add coconut milk and turmeric, cook over medium heat while whisking constantly until thickened and bubbling, about 4-6 minutes

Finish the curd:

Remove from heat, stir in vegan butter and salt until silky smooth, then let cool completely—it will thicken more as it cools

Assemble the sandwiches:

Spoon about 1 tablespoon of curd onto half the cookies, top with remaining cookies, and chill briefly to set

Save

My friend requested these for her wedding shower after trying them at a dinner party. Seeing her face light up when she realized they fit her dietary restrictions—without sacrificing any flavor—made all the recipe testing worth it.

Making The Curd Ahead

The lemon curd actually develops deeper flavor if made a day ahead, stored covered in the refrigerator. Let it come to room temperature before assembling so it spreads smoothly without tearing the cookies.

Getting The Perfect Texture

If your dough feels too sticky to roll, chill it for 15 minutes. Conversely, if it's crumbly and won't hold together, add just 1 teaspoon more plant-based milk until it cooperates.

Storage And Serving Suggestions

These are best served slightly chilled—the curd becomes delightfully firm and the cookies maintain their texture. Store them in a single layer with parchment paper between stacked cookies.

• Let sandwiches set for at least 15 minutes before serving
• Bring to room temperature 10 minutes before eating for the softest texture
• Sprinkle with powdered sugar right before serving for a bakery-style finish

Save

There's something deeply satisfying about serving cookies that make everyone happy, regardless of dietary restrictions. These little sandwiches of sunshine have become my go-to for bringing people together.

Recipe FAQs

→ Can I make these cookies nut-free?

Yes, simply replace the almond flour with an equal amount of gluten-free all-purpose flour blend. The texture will remain slightly crisp and tender.

→ How should I store these sandwich cookies?

Keep them in an airtight container in the refrigerator for up to 4 days. The cool temperature helps maintain the curd filling's texture and prevents the cookies from becoming too soft.

→ Can I freeze the cookie dough or finished sandwiches?

You can freeze the unbaked dough balls for up to 3 months, then thaw and bake as needed. Once assembled, freezing is not recommended as the curd texture may become grainy.

→ What gives the lemon curd its yellow color without eggs?

A pinch of turmeric provides natural golden color. This is completely optional—the curd tastes the same without it, though it will appear more pale yellow.

→ Can I use lemon curd from a jar instead of homemade?

Yes, store-bought lemon curd works in a pinch. Look for vegan varieties or check labels carefully, as traditional curds contain eggs and butter.

→ Why did my cookies spread too much while baking?

Ensure your coconut oil is solid but pliable, not melted or too cold. If your kitchen is warm, chill the dough for 15–20 minutes before baking to help them hold their shape.