Preheat the oven to 400 degrees F. Remove the dough from the fridge, roll into a 11-in circle.
Carefully transfer to a buttered 9-in pie plate. Use a foil to cover the pie and add beans or pie weights on top. This is to prevent the pie crust from pillowing up. Bake for 20 minutes.
Make a simple syrup with 1/2 cup brown sugar and water, and bring it to a boil. Drain or scoop the boba, add the cooked boba. Simmer for 2-3 minutes. set aside to cool.
Add this to the cream filling and beat well. Add half the boba in brown sugar syrup and fold well.