Blackberry Jam

Very easy. From allrecipes.com.

• Ready In: 40 mins
• Yields: 2 small jars

Ingredients

• 4  cups blackberries
• 1  cup sugar
• 2  tablespoons cornstarch
• 1⁄2 teaspoon lemon juice

Directions

1. Combine blackberries and sugar in a pot over medium heat. Bring to a simmer.
2. Strain seeds if desired, then return juice to pot, reserving 1 tbsp of juice in a small bowl.
3. Add the cornstarch to the reserved juice (make sure the juice has cooled down first). Blend completely.
4. Add cornstarch mixture to juice; bring to a boil.
5. Stir frequently, until jam is thickened, about 15 minutes.
6. Remove from heat and stir in lemon juice.