Courtesy of Bon Appetit

Makes about 3/4 cup.

INGREDIENTS:

1 10-ounce package frozen raspberries, thawed
3 tablespoons raspberry jam
1 teaspoon fresh lemon juice

DIRECTIONS:

Strain raspberries, reserving 1/4 cup raspberry juices. Puree berries, 1/4-cup juices, jam, and lemon juice in processor. Strain, pressing on solids to extract as much fruit and juice as possible.
(Can be made 2 days ahead. Cover and chill.)

This recipe used sweetened frozen raspberries. You may or may not need to adjust for sweetness depending on your taste and the use of the sauce.