INGREDIENTS
3/4 cup
Blackberries, fresh
3/4 cup
Raspberries, fresh
1
Egg, large
1 tbsp
Lemon juice, fresh
1 1/4 cups
All-purpose flour
1 1/2 tbsp
Cornstarch
1/3 cup
Granulated sugar
1
Salt, Coarse
1
Sanding sugar, Fine
2 tbsp
Ice water
1 stick
Butter, unsalted
1 tbsp
Sour cream