Simple Homemade Strawberry Jam Squares

Featured in: Oven-Made Comforts

These buttery, crumbly bars feature a sweet strawberry jam filling layered between a soft shortbread base and a delicate crumble topping. Easy to prepare with simple ingredients like flour, butter, and vanilla, they bake to a golden finish perfect for any time of day. Enjoy warm or cooled, perhaps with a scoop of vanilla ice cream for extra indulgence.

Substitutions such as raspberry or apricot jam add variety, and chopped nuts can enhance texture. Simple tools and a short baking time make these squares a delightful treat to share.

Updated on Sat, 20 Dec 2025 08:59:00 GMT
Golden-brown Simple Homemade Strawberry Jam Squares, each bite filled with sweet, fresh strawberry flavor. Pin It
Golden-brown Simple Homemade Strawberry Jam Squares, each bite filled with sweet, fresh strawberry flavor. | happysfenj.com

I stumbled into making these squares on a cloudy Saturday when I had half a jar of homemade strawberry jam that was too runny for toast. My grandmother used to say that nothing good in the kitchen comes from waste, so I mixed up a buttery dough, pressed it into a pan, and hoped for the best. The smell that filled my kitchen that afternoon was pure comfort: toasted butter, caramelized sugar, and bright strawberries. When I pulled them out, golden and crumbly, I knew I had something special. I've been making them ever since, tweaking just enough to make them mine.

I baked a double batch for my niece's birthday once, and she ate three before anyone else got near the platter. She told me later it reminded her of the fruit bars her mom used to pack in her lunchbox, but better. I watched her friends hover around the table, sneaking seconds when they thought no one was looking. That's when I realized these squares don't need fanfare or fancy plating. They just need to be warm, crumbly, and within reach.

Ingredients

  • All-purpose flour: The foundation of the crumb, it should be spooned into your measuring cup and leveled off so the dough doesn't turn dense.
  • Baking powder: Just enough to give the topping a slight lift without puffing it into cake.
  • Salt: A pinch sharpens the sweetness and brings out the buttery richness.
  • Granulated sugar: It sweetens and helps the edges caramelize into those crispy golden bits.
  • Unsalted butter: Cold and cubed is the key, it creates pockets of flakiness as it melts in the oven.
  • Egg: Binds the dough just enough to hold together without making it tough.
  • Vanilla extract: A teaspoon adds warmth and rounds out the flavor beautifully.
  • Strawberry jam: Use the best you have, seedless spreads more evenly and tastes cleaner in every bite.

Instructions

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Preheat and Prep:
Set your oven to 350°F and line your pan with parchment, letting the edges hang over like little handles. This makes lifting out the finished bars so much easier.
Mix the Dry Ingredients:
Whisk together the flour, baking powder, salt, and sugar until evenly combined. This step ensures every bite has balanced sweetness.
Cut in the Butter:
Toss in the cold butter cubes and work them into the flour with your fingertips or a pastry cutter until the mixture looks like wet sand. You want pea-sized clumps, not a smooth dough.
Add Egg and Vanilla:
Stir in the egg and vanilla just until the dough starts to clump together. Don't overwork it or the texture will turn tough.
Press the Base:
Take about two-thirds of the dough and press it firmly into the bottom of the pan, creating an even layer. Use the back of a spoon if your hands get sticky.
Spread the Jam:
Spoon the jam over the base and spread it gently, leaving a thin border around the edges to prevent bubbling over. The jam will melt and settle as it bakes.
Add the Crumble:
Break the remaining dough into small irregular pieces and scatter them over the jam. Don't worry about coverage, the gaps let the jam peek through.
Bake Until Golden:
Slide the pan into the oven and bake for 30 to 35 minutes, until the top is lightly browned and your kitchen smells like heaven. The edges should look crisp and set.
Cool Completely:
Let the bars cool fully in the pan before lifting them out by the parchment. Cutting them while warm will make them fall apart.
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One evening I made these for a neighbor who had just moved in, and she knocked on my door the next day with the empty plate and a request for the recipe. She said her daughter had eaten two for breakfast and asked if they could be friends. I think that's the magic of something simple done well: it opens doors, starts conversations, and makes people feel cared for without you having to say a word.

How to Store and Serve

These squares keep beautifully in an airtight container at room temperature for up to five days, though they rarely last that long in my house. If you want to serve them warm, a quick ten seconds in the microwave brings back that just-baked softness. I've also frozen them between layers of parchment, and they thaw perfectly on the counter in about an hour.

Flavor Variations to Try

Swap the strawberry jam for raspberry, apricot, or even a tart lemon curd if you want something brighter. I once stirred a handful of finely chopped almonds into the crumble topping, and the nutty crunch made everyone ask what I'd changed. You can also add a pinch of cinnamon to the dough for a warmer, spiced undertone that pairs beautifully with berry jam.

Serving Suggestions

These squares shine on their own, but I love them with a dollop of whipped cream or a scoop of vanilla ice cream when I'm feeling indulgent. They're perfect alongside morning coffee, tucked into a lunchbox, or plated with fresh berries for a simple dinner party dessert. If you're serving them to guests, dust the tops lightly with powdered sugar for a bakery-worthy finish.

  • Serve them slightly warm with a drizzle of heavy cream for an elegant touch.
  • Pack them in a tin for picnics or road trips, they travel incredibly well.
  • Pair with hot tea or cold milk for the ultimate afternoon break.
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Crumbly topping on Simple Homemade Strawberry Jam Squares, inviting you to imagine the sweet, fruity aroma. Pin It
Crumbly topping on Simple Homemade Strawberry Jam Squares, inviting you to imagine the sweet, fruity aroma. | happysfenj.com

Every time I pull these out of the oven, I'm reminded that the best recipes don't need to be complicated to be loved. They just need to taste like home.

Recipe FAQs

What type of jam works best as filling?

Seedless strawberry jam is ideal for smooth spreading, but raspberry or apricot jams also provide delicious flavor variations.

Can I add nuts to the crumble topping?

Yes, adding finely chopped nuts like almonds or walnuts to the crumble enhances texture and flavor.

How should these bars be stored?

Store them in an airtight container at room temperature for up to 3 days or refrigerate to keep them fresh longer.

Is it better to serve these squares warm or cold?

They can be enjoyed both ways; serving slightly warm with vanilla ice cream creates a decadent experience.

What is the purpose of chilling the butter before mixing?

Cold butter helps create a crumbly texture as it blends into the flour, resulting in a tender shortbread base and topping.

Simple Homemade Strawberry Jam Squares

Buttery crumbly bars with a sweet strawberry filling, ideal for breakfast, dessert, or teatime enjoyment.

Prep Time
15 minutes
Time to Cook
35 minutes
Overall Time
50 minutes
Created by Lily Hudson

Recipe Type Oven-Made Comforts

Skill Level Easy

Cuisine Type American

Makes 16 Number of Servings

Diet Preferences Vegetarian Option

What You Need

Shortbread Base and Crumble

01 2 cups all-purpose flour
02 1/2 teaspoon baking powder
03 1/4 teaspoon salt
04 1/2 cup granulated sugar
05 1/2 cup unsalted butter, cold and cubed
06 1 large egg
07 1 teaspoon vanilla extract

Filling

01 3/4 cup strawberry jam, preferably seedless

Step-by-Step

Step 01

Prepare Oven and Pan: Preheat the oven to 350°F. Line an 8-inch square baking pan with parchment paper, ensuring an overhang for easy removal.

Step 02

Combine Dry Ingredients: In a large bowl, whisk together flour, baking powder, salt, and granulated sugar until thoroughly mixed.

Step 03

Incorporate Butter: Add cold, cubed butter to the dry mixture and use a pastry cutter or fingertips to work it in until the mixture resembles coarse crumbs.

Step 04

Mix Wet Ingredients: Add the egg and vanilla extract to the crumb mixture and mix gently until the dough just comes together. Avoid overmixing.

Step 05

Form Shortbread Base: Press approximately two-thirds of the dough evenly into the bottom of the prepared pan to create the base layer.

Step 06

Add Jam Layer: Spread the strawberry jam uniformly over the base layer, leaving a small border along the edges.

Step 07

Add Crumble Topping: Crumble the remaining dough in small clumps and scatter over the jam layer.

Step 08

Bake: Place the pan in the oven and bake for 30 to 35 minutes, or until the topping is lightly golden.

Step 09

Cool and Serve: Allow the bars to cool completely in the pan, then lift out using the parchment overhang and cut into 16 squares.

Tools Needed

  • 8-inch square baking pan
  • Mixing bowls
  • Pastry cutter or fork
  • Measuring cups and spoons
  • Spatula
  • Parchment paper

Allergy Details

Always check ingredients for allergens. Not sure? Ask your doctor.
  • Contains wheat (gluten), egg, and dairy (butter). Not suitable for those with gluten, egg, or dairy allergies.

Nutrition (per portion)

Numbers here are for information, not as health advice.
  • Caloric Value: 165
  • Fat Content: 6 g
  • Carbohydrates: 25 g
  • Protein Amount: 2 g