Preheat oven to 400 degrees F (200 degrees C). In a large bowl, mix the flour, 1/2 cup sugar, baking powder, cinnamon and salt. Cut in butter until the mixture resembles coarse crumbs. Stir in 1/4 cup boiling water just until mixture is evenly moist.
In a separate bowl, dissolve the cornstarch in cold water. Mix in remaining 1 cup sugar, lemon juice, and blackberries. Transfer to a large sauce pan, and bring to a boil, stirring frequently. After bringing to a boil, transfer mixture to a casserole dish and add dough mixture on top. Place uncovered cobbler into oven.
Bake 25 minutes in the preheated oven, until dough is golden brown.
Calories From Fat
% Daily Value*
Total Fat 0g
Saturated Fat 0g
Trans Fat 0g
Dietary Fibers 0g
* Percent Daily Values are based on a 2,000 calorie diet.
* Nutrition information is estimated based on the ingredients and cooking instructions as described in each recipe and is intended to be used for informational purposes only. Please note that nutrition details may vary based on methods of preparation, origin and freshness of ingredients used.