In a medium size mixing bowl, add frozen raspberries, chia seeds, lemon juice and powdered sweetener of choice. I recommend raspberries as they contain less sugar and carbs than others berries, check my keto fruit list to choose other fruits.
Cover and keep the bowl at room temperature for 1 hour or until the berries are defrosted.
When the berries are fully defrosted, mash them with a fork or potato masher until it reaches the consistency you love.
If you don't like chia seeds lumps, you can blend the jam in a blender.
This recipe makes 12 servings of 2 tablespoons of jam each
Transfer the chia jam into an airtight container and store for 3 days in the fridge