Prepare the Ramekins
Divide the chilled pastry cream evenly among eight 6-ounce ramekins until they're filled just under one-third of the way. Evenly portion the berries on top of the pastry cream. Remove the crumble from the refrigerator and break off clumps about 1/2 to 3/4 inch in diameter, keeping the clumps about the same size, and divide them evenly among the ramekins. The crumble comes together when you combine toasted pecans, cake flour, confectioners' sugar, turbinado sugar, salt, baking powder, melted butter and vanilla in a food processor. You can budget your time by making the topping several days in advance.