Polish-Inspired Strawberry Jam Crumble Bars
These strawberry jam bars are inspired by the kinds of desserts that quietly lived in Polish kitchens—simple, comforting, and never overly sweet. The kind of treat made with pantry staples, a jar of good jam, and the understanding that dessert doesn’t need to be complicated to be special.
In Polish baking, jam-filled pastries and crumb-topped bars show up again and again. Whether it’s spooned into yeasted dough, layered into shortbread-style bases, or tucked between buttery crumbs, jam is always the star. These bars take that familiar idea and turn it into an easy, everyday bake that still feels rooted in tradition.
The dough here is rich and buttery, lightly scented with lemon zest and almond extract—both flavors often found in Eastern European desserts. A thick layer of strawberry jam adds brightness and just enough tartness to balance the sweetness. Once baked, the top becomes golden and crumbly, and a generous dusting of powdered sugar gives them that classic bakery finish.
They’re perfect with a cup of coffee, ideal for sharing, and even better the next day once the flavors have had time to settle. Simple, nostalgic, and deeply comforting—just the way so many Polish-inspired desserts are meant to be.
Ingredients
For the Bars
- ½ cup (1 stick) unsalted butter, room temperature – 113 g
- ⅓ cup granulated sugar – 67 g
- ⅓ cup light brown sugar, packed – 73 g
- 1 large egg, room temperature – 50 g (without shell)
- 1½ teaspoons vanilla extract – 6 g
- ½ teaspoon almond extract – 2 g
- Zest of 1 lemon
- 2 cups all-purpose flour – 240 g
- ½ teaspoon baking soda – 2 g
- ½ teaspoon salt – 3 g
- ½ cup strawberry jam + 1 teaspoon – 165 g
- 1 teaspoon lemon juice – 5 g
- Powdered sugar, for topping
Directions
- Preheat your oven to 350°F (175°C). Line an 8×8-inch pan with parchment paper, leaving overhang on the sides for easy removal.
- In a large bowl, cream together the butter, granulated sugar, and brown sugar until light and fluffy.
- Beat in the egg, vanilla extract, almond extract, and lemon zest until fully combined.
- In a separate bowl, whisk together the flour, baking soda, and salt.
- Gradually mix the dry ingredients into the wet ingredients until just combined. The dough will be soft but not sticky.
- Press about two-thirds of the dough evenly into the bottom of the prepared pan to form the base.
- In a small bowl, stir together the strawberry jam and lemon juice, then spread it evenly over the dough layer.
- Crumble the remaining dough over the jam, leaving some jam visible.
- Bake for 30–35 minutes, or until the top is lightly golden.
- Let the bars cool completely, then dust generously with powdered sugar before slicing into bars and serving.
Storage & Bake-Ahead Tips
- Room Temperature: Store the bars in an airtight container at room temperature for up to 3 days.
- Refrigerator: For longer storage, keep them refrigerated for up to 5–6 days. Let them come to room temperature before serving for the best texture.
- Bake Ahead: These bars actually taste even better the next day. Bake them a day in advance, cool completely, and dust with powdered sugar just before serving.
- Freezing: Freeze the bars (without powdered sugar) for up to 2 months. Thaw overnight in the refrigerator or at room temperature, then dust with powdered sugar before serving.