Whip up this easy blackberry filling in no time to fill your cakes, macarons, and more with bright berry flavor! This dessert filling features simple ingredients and can be made using frozen or fresh blackberries (bonus points if you pick them for free in a random forest).

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Blackberry Filling Ingredients

• Fresh or Frozen Blackberries
• Granulated Sugar (Or swap with brown sugar for toasty/warm flavor notes)
• Lemon Zest
• Lemon Juice
• Cornstarch
• Water

How to Make Blackberry Filling

Combine Ingredients

To begin, combine the blackberries, sugar, lemon zest, and lemon juice in a medium saucepan.

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Cook the Filling

Cook over medium heat, mashing as you go to help the berries break down. Once the mixture begins bubbling, lower the temp to medium low if needed to avoid burning, or stir more frequently.

Adjust For Sweetness Preference

Once the berries have thoroughly broken down, taste the filling to see if it needs any additional sugar. Depending on how sweet the berries are and your personal sweetness preference, you may want to add an additional tablespoon or two.

Thicken the Blackberry Filling

Next, stir the cornstarch and water together in a separate small bowl to create a slurry.

Pour the slurry into the saucepan and stir to combine. Cook the filling for a few more minutes until thickened.

Cooling the Filling

Pour filling into your desired container, and allow to cool.

And that’s it! This batch makes 1.5 cups, perfect for filling a few cake layers, or 1.5-2 dozen cupcakes! I recently used a 1/2 batch of this recipe to top some Blackberry Coconut Cookies and it was DELICIOUS. Check out the recipe below!

Blackberry Coconut Cookies

Looking for more summer recipes? Here’s a few favorites!

Strawberries and Cream Macarons

Nectarine Raspberry Mini Pavlovas

Lemon Poppyseed Cake Mix Cookies

Blackberry Filling

Easy homemade blackberry filling recipe using simple ingredients. Add bright berry flavor to your cakes, macarons, and more.

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Prep Time 20 minutes mins

Course Dessert

Servings 1.5 cups

Ingredients

 

• 3 cups fresh or frozen blackberries
• 1/2 cup granulated sugar (plus an optional additional few tbsp to taste depending on the sweetness of the berries)
• 1 tbsp lemon zest about 1 lemon worth
• 1 tbsp lemon juice about 1/2 lemon
• 1.5 tbsp cornstarch
• 1.5 tbsp water

Instructions

 

• Place blackberries, sugar, lemon zest, and lemon juice in a small saucepan and cook over medium heat until the berries have broken down. Mash and stir with a wooden spatula as you go.
• Once berries have thoroughly broken down, taste to see if additional sugar needs to be added. Add 1-2 additional tablespoons if desired.
• In a small bowl, stir cornstarch and water together until completely combined.
• Add cornstarch slurry to the berries while stirring, and continue to stir.
• Bring mixture to a low simmer while stirring frequently. Be sure to fully scrape the bottom and sides of your pan as you go. Continue to cook until the filling has thickened.
• Remove filling from heat. Place in the fridge to chill.

Keyword Berry Filling, Cake Filling, Cupcake Filling, Filling, Fruit Filling, Macaron Filling, Thick Fruit Filling

Tried this recipe?Let us know how it was!