4 c. blackberries
1 c. sugar
4 tsp. cornstarch
Pinch of salt
1/4 tsp. almond extract
2 tbsp. butter
1 1/2 tsp. lemon juice

Combine all ingredients and place in prepared crust. If using fresh berries just use them raw but if you're using frozen berries, it seems to work out better to heat them and then add the other ingredients.