In a medium bowl, mix flour, sugar, baking powder, and salt together. Work in the butter until uniformly a texture similar to corn meal.
In a measuring cup that shows ounces, beat the egg, then add enough cream to total 7 ounces. Mix with the egg, then add all at once to the flour mixture. Mix to form a soft dough. About halfway through mixing, dump in a 12 ounce bag of cinnamon chips. Mixi just a bit more then turn out onto floured surface and finish working in the cinnamon chips. Pat or roll the dough into a 12' x 12" square. Cut all the way down the center of the square and then across, forming 4 squares. Cut each square corner to corner, like an X, forming 4 triangles from each square. You should finish with 16 triangles. Place on ungreased cookie sheet and bake for about 18 minutes, until golden. I like the corners a little crisp, so I bake them roughly 20 minutes.
Recipe by Messin' With Perfection at https://www.messinwithperfection.com/316/