This easy homemade mixed berry filling recipe is packed with strawberries, raspberries, and blueberries, and works perfectly with cakes and cupcakes. With only 5 ingredients and in only 10 minutes, you can create a delicious triple berry cake filling from scratch.
In a small saucepan, combine the frozen mixed berries, granulated sugar, and lemon juice. Place the saucepan over medium heat to cook the berry mixture, stirring occasionally, for 10 minutes until the berries break down and the mixture is bubbling. Use a wooden spoon to break up the larger berries as they cook.
In a small bowl, stir together the cornstarch and water to create a slurry. Remove the saucepan from the heat and add in the cornstarch slurry while stirring well to thicken the berry filling.
Transfer the berry filling to a heat-safe container and cool to room temperature. Chill the filling in the refrigerator for at least 2 hours before using.
Notes
Storing & Serving:
Refrigerator: Store the filling in an airtight container in the refrigerator for up to 1 week.
Freezer: Store the filling in an airtight container or resealable storage bag in the freezer for up to 3 months.
Note:Metric conversions and nutritional information are calculated automatically. I cannot guarantee the accuracy of this information.