Combine the berries and lemon juice in a medium saucepan. Heat over medium-high heat for 3-4 minutes.
Bring the mixture to a boil, then reduce the heat slightly and simmer for an additional 2-3 minutes.Lightly press the berries with a fork or masher to release their juices, avoiding complete mashing.
Add sweetener towards the end, stirring well. Adjust with more lemon juice or sweetener as desired.
Remove from heat. Serve the berry compote immediately or let it cool for later use.
Video
Notes
To store: Keep it in an airtight jar in the refrigerator for up to 2 weeks.To freeze: Freeze it in individual portions in an ice-cube tray for up to two months. Reheat on the stovetop or in a microwave (in 20-second spurts). Check the blog post for more tips!