Strawberry jam cake filling is a sweet, slightly tart, fruit-forward filling made with fresh or frozen strawberries. It adds flavor, moisture, and a vibrant color to cakes, cupcakes, or pastries.
Strawberry jam cake filling became a standout in my kitchen for its bright, fruity depth and smooth, spreadable texture.
I first made it to layer between sponge cakes, and the result was a burst of fresh sweetness that elevated the entire dessert.
Beyond cakes, I discovered how beautifully it complements pastries, cookies, breakfast toast, and even pancakes. The balance of tart lemon and sweet strawberries creates a vibrant flavor that works in countless pairings.
Confirming its success came from how effortlessly it blended into both warm bakes and chilled treats. This filling serves as a delicious, reliable foundation for creative desserts.
How To Prepare Strawberry Jam Cake Filling?
Recipe Overviews
Preparation Time: 10 minutes
Cooking Time: 12 minutes
Total Time: 22 minutes
Course: Filling / Dessert
Difficulty: Easy
Cuisine: American / Western
Calories: 45 calories per 2-tablespoon serving (approx. 12 servings)
Yield: 2 cups of jam filling

Kitchen Utensils Needed
- Medium saucepan
- Wooden spoon or silicone spatula
- Small bowl (for slurry)
- Measuring cups and spoons
- Potato masher or fork (optional, for breaking down fruit)
- Fine mesh strainer (optional, for smoother consistency)
- Airtight container (for storing)
Ingredients
- 2 cups (300g) fresh or frozen strawberries, hulled and finely chopped
- 1/2 cup (100g) granulated sugar (adjust according to sweetness preference)
- 1 tablespoon freshly squeezed lemon juice
- 1 tablespoon cornstarch
- 2 tablespoons cold water (to dissolve cornstarch)
- A pinch of salt (optional, to enhance flavor)
Instructions
1. In a medium saucepan, add the chopped strawberries, granulated sugar, lemon juice, and a pinch of salt. Stir to combine and set over medium heat.
2. Allow the mixture to simmer for 5–7 minutes, stirring occasionally, until the strawberries begin to break down and release their juices. Use a potato masher or fork to help mash the fruit if a smoother texture is desired.
3. In a small bowl, mix the cornstarch with the cold water to form a slurry. Pour this into the simmering strawberry mixture and stir constantly. Cook for another 2–4 minutes until the filling thickens.
4. Once thickened to your desired consistency, remove the pan from heat. Let the jam cool completely before transferring it to an airtight container.
Why My Recipe Works
This strawberry jam cake filling recipe works because it uses simple, fresh ingredients that balance sweetness and acidity.
Cooking the strawberries releases their natural juices and intensifies their flavor, while the lemon juice brightens and preserves the taste.
The cornstarch slurry thickens the mixture without altering the flavor, giving it a smooth, spreadable consistency perfect for cakes.
Every step is straightforward, ensuring reliable results with a homemade taste that’s far better than store-bought options.
My Favorite Ways To Serve It Up
Layered between soft vanilla or sponge cakes, strawberry jam filling adds a fresh, sweet contrast that makes every bite memorable.
I love swirling it into cheesecake batter before baking—it creates beautiful ribbons of color and flavor. Spoon it over pancakes or waffles for a morning treat that feels like dessert.
I also use it as a filling for thumbprint cookies or spread between shortbread layers. Sometimes, I add a dollop on top of yogurt or oatmeal for a quick boost of fruity sweetness. No matter the dish, it brings a homemade touch that always stands out.
Health Benefits
Strawberries are rich in antioxidants, vitamins, and fiber, making this jam filling a healthier option compared too many processed spreads. They provide vitamin C, which supports the immune system and skin health.
The natural fruit sugars combined with moderate added sugar make it a more balanced sweetener alternative. Lemon juice adds a dose of vitamin C and helps with digestion.
Using fresh fruit means fewer preservatives and additives, contributing to a cleaner, more wholesome ingredient profile.
When enjoyed in moderation, strawberry jam cake filling can add both flavor and nutritional value to your desserts and snacks.
Tips And Tricks For Making
➤ Use ripe, fresh strawberries: Selecting strawberries that are fully ripe ensures the filling will have a natural sweetness and intense flavor, making the jam taste fresh and vibrant. Frozen berries work too but might produce a slightly softer texture.
➤ Stir constantly when adding the cornstarch slurry: This prevents lumps from forming and helps the filling thicken evenly, resulting in a smooth, glossy texture perfect for spreading.
➤ Gently mash the strawberries while cooking: Lightly breaking down the berries helps release their juices and creates a more cohesive filling without large chunks, ideal for cakes.
➤ Allow the filling to cool completely before using: Spreading warm filling can cause frosting to melt or cakes to become soggy, so patience here maintains the cake’s structure and appearance.
➤ Adjust sugar to taste: Depending on how sweet or tart your strawberries are, customize the sugar amount to balance the flavor perfectly—this way the filling complements rather than overwhelms your dessert.
Variations And Substitutions
Here are some variations and substitutions to customize your strawberry jam cake filling:
Variations
◆ Mixed Berry Jam: Combine strawberries with raspberries, blueberries, or blackberries for a deeper, more complex flavor.
◆ Spiced Strawberry Filling: Add warm spices like cinnamon, nutmeg, or ginger during cooking for a cozy twist.
◆ Chunky Texture: Leave some strawberries in larger pieces for added bite and rustic appeal.
◆ Smooth Jam: After cooking, strain the mixture to remove seeds and create a silky texture.
◆ Creamy Version: Stir in cream cheese or mascarpone after cooling for a richer, creamier filling.
Substitutions
◆ Sugar Alternatives: Use honey, maple syrup, or agave nectar instead of granulated sugar for different sweetness profiles.
◆ Cornstarch Substitute: Use arrowroot powder or tapioca starch if you prefer a gluten-free thickener.
◆ Lemon Juice Alternative: Use lime juice or a splash of apple cider vinegar to add acidity.
◆ Fresh Strawberries: Frozen strawberries can be used when fresh aren’t available, just adjust cooking time to reduce extra moisture.
◆ Water Substitute for Slurry: Use fruit juice or white wine instead of water for added flavor depth.
Storage Recommendations
Store the strawberry jam cake filling in an airtight container to keep it fresh and prevent it from absorbing other fridge odors.
Refrigerate immediately after it cools, and use within one week for the best flavor and texture. For longer storage, freeze the filling in small portions—ice cube trays work well—then transfer the frozen cubes to a sealed freezer bag.
Thaw in the refrigerator overnight before use. Avoid repeated thawing and refreezing to maintain quality.
FAQs About Strawberry Jam Cake Filling
Can I use frozen strawberries for the filling?
Yes, frozen strawberries work well. Just thaw them first and drain any excess liquid before cooking.
How do I prevent the filling from being too runny?
Make sure to cook the mixture long enough after adding the cornstarch slurry, stirring constantly until it thickens.
Can I make the filling ahead of time?
Absolutely! It stores well in the fridge for up to a week and can be frozen for longer storage.
Is it possible to make this filling sugar-free?
Yes, you can reduce or replace sugar with natural sweeteners like stevia or monk fruit, but the texture and taste may vary slightly.
Can I use this filling for other desserts besides cakes?
Definitely! It’s great for pastries, cookies, pancakes, yogurt, and even ice cream toppings.
Conclusion
Creating strawberry jam cake filling was an easy success that brought real joy to my kitchen. The process was simple; the result full of flavor, and it added something truly special to my dessert.
I hope you’ll try making strawberry jam cake filling now and enjoy the same satisfaction. Once you taste the sweet, fresh flavor in your favorite treat, you’ll see how delicious it truly is.
Let me know how it turns out—I’d love to hear your thoughts!
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Strawberry Jam Cake Filling
Equipment
- Medium saucepan
- Wooden spoon or silicone spatula
- Small bowl (for slurry)
- Measuring cups and spoons
- Potato masher or fork (optional, for breaking down fruit)
- Fine mesh strainer (optional, for smoother consistency)
- Airtight container (for storing)
Ingredients
- 2 cups 300g fresh or frozen strawberries, hulled and finely chopped
- 1/2 cup 100g granulated sugar (adjust according to sweetness preference)
- 1 tablespoon freshly squeezed lemon juice
- 1 tablespoon cornstarch
- 2 tablespoons cold water to dissolve cornstarch
- A pinch of salt optional, to enhance flavor
Instructions
- In a medium saucepan, add the chopped strawberries, granulated sugar, lemon juice, and a pinch of salt. Stir to combine and set over medium heat.
- Allow the mixture to simmer for 5–7 minutes, stirring occasionally, until the strawberries begin to break down and release their juices. Use a potato masher or fork to help mash the fruit if a smoother texture is desired.
- In a small bowl, mix the cornstarch with the cold water to form a slurry. Pour this into the simmering strawberry mixture and stir constantly. Cook for another 2–4 minutes until the filling thickens.
- Once thickened to your desired consistency, remove the pan from heat. Let the jam cool completely before transferring it to an airtight container.