Step 1

Preheat oven to 400 degrees.

Step 2

To make the dough, mix the flour, sugar, baking powder, salt, and cinnamon in a large mixing bowl. Cut in the butter using a pastry cutter or two butter knives until you have a coarse, crumbly mixture. Pour in the boiling water and stir to combine. Set aside.

Step 3

To make the filling, dissolve the cornstarch in the water. Add the berries to a large, deep cast iron skillet over medium heat. Add the cornstarch slurry, lemon juice, and sugar to the pan and stir well.

Step 4

Heat mixture over medium heat until boiling, stirring frequently. Remove from heat.

Step 5

Drop small pieces of dough evenly over the berry mixture. Place the cast iron pan on a foil lined cookie sheet and place in the oven. Bake for 20-25 minutes, until the dough is golden brown and the berries are thick and bubbly.

Step 6

Serve warm with vanilla ice cream, if desired.