Blackberry Fool

I made half of this recipe with raspberries and it was delicious.  I'm sure it would be just as good with blackberries!

Blackberry Fool
from Martha Stewart's Everyday Food

Serves 8

2 cups blackberries (8 ounces total), plus more for garnish
1/2 cup sugar
1 teaspoon fresh lemon juice
2 cups heavy cream
1/2 teaspoon pure vanilla extract

In a blender, combine berries, sugar, and lemon juice; blend until smooth. Pour mixture through a fine-mesh sieve, pressing with a rubber spatula to push through. Discard seeds; transfer 1/2 cup berry puree to a small bowl. Cover and refrigerate; reserve for topping.

In a large bowl, combine cream and vanilla; whip until stiff peaks form. Gently fold remaining berry puree into cream. Spoon mixture into custard cups. Cover loosely and refrigerate 1 hour (or up to overnight). To serve, drizzle blackberry fools with reserved berry puree, and garnish with blackberries.