This No-Bake Strawberry Lemon Swirl Tart is a stunning summer dessert that comes together without ever turning on your oven. A buttery shortbread cookie crust cradles a silky lemon curd filling swirled with vibrant pink strawberry, creating a gorgeous marbled pattern that looks like it came straight from a professional bakery. Perfectly balanced between tangy and sweet, this make-ahead tart is ideal for summer gatherings and dinner parties.
Pulse shortbread cookies in a food processor until you have fine, uniform crumbs (about 2½ cups). Stir together with melted butter and salt until the mixture resembles wet sand and holds when pressed.
Press the crumb mixture firmly into the bottom and up the sides of a 9-inch tart pan with removable bottom. Refrigerate for at least 20 minutes while you prepare the filling.
Whisk together 4 whole eggs and 4 egg yolks in a medium bowl until well blended and slightly frothy, then set aside at room temperature.
Melt 12 tablespoons butter in a medium saucepan over medium-low heat, then whisk in sugar, lemon zest, lemon juice, cornstarch, and salt. Once hot and steaming, slowly whisk in the egg mixture and continue whisking constantly for 6–8 minutes until thickened to a pudding-like consistency.
Pour the curd through a fine-mesh strainer into a heatproof bowl, pressing with a spatula. Transfer 1 cup of strained curd to a separate bowl and stir in the seedless strawberry jam until smooth and evenly pink.
Alternately pour dollops of plain lemon curd and strawberry-lemon curd into the chilled crust until all curd is used, then drag a skewer or chopstick through the surface in swirling motions to create a marbled pattern.
Carefully transfer the tart to the refrigerator (keeping it level) and chill for at least 2 hours, or ideally overnight, until the curd is completely set and no longer jiggly.
Remove the outer ring by setting the pan on a large can and pressing the ring down, then slide a thin spatula under the crust to transfer to a serving platter. Slice with a clean knife, wiping between cuts, and serve with whipped cream and fresh strawberries.
Notes
Use real butter shortbread cookies (like Pepperidge Farm Chessmen) — oil-based alternatives produce an inferior crust texture and flavor.
Don't skip straining the curd — it removes any cooked egg bits and zest chunks, ensuring a silky smooth filling.
Whisk constantly and patiently over medium-low heat to prevent scrambled eggs in the curd; this step takes 6–8 minutes and cannot be rushed.
Always use seedless strawberry jam — seeds will disrupt the smooth texture and vibrant color of the pink swirl.
Fresh lemon juice is essential; bottled juice tastes flat and will noticeably affect the flavor. You'll need 6–7 lemons.
Press the crust firmly and evenly so it doesn't crumble when sliced.
Overnight chilling gives the firmest texture and cleanest slices — 2 hours is the minimum but longer is better.
Wipe your knife with a damp cloth between each cut for picture-perfect slices.
Make-ahead tip: The crust can be prepared up to 2 days ahead and the lemon curd up to 1 day ahead; bring curd to room temperature before assembling.
Store covered in the refrigerator for up to 4 days. Freezing is not recommended as it changes the texture of the curd.