Chop up the creme eggs and freeze for 1-2 hours. Preheat the oven to 375 degrees F. Whisk together the flour, sugars, baking powder, cinnamon and salt. Cut the cold butter into the flour. Remove the creme eggs from the freezer and chop up the eggs again with a sharp knife, into diced-sized pieces. Add to the flour mixture and stir to coat. Add the whipping cream and knead until a dough forms.