1/2 cup butter
1/4 cup sugar
1 cup WindStone Farms Blackberry Jam
4 Tbsp. flour
4 egg yolks well beaten
1/2 cup cream

Beat butter, sugar, and flour until well blended. Add egg yolks and cream.
Beat until smooth.
Fold in blackberry jam and stir with spoon until well blended.
Pour into unbaked pie shell and bake at 350 degrees for 45 minutes or until firm.
Serve with whipped cream.