Make pastry for 9" pie. Combine sugar, water and cream tartar and bring to a boil, drop in ritz crackers and keep boiling until transparent about 8 - 10 min. Pour into unbaked pie shell and sprinkle with cinnamon and nutmeg, dot with butter, cover with top crust and slit crust to let steam escape. Bake in hot oven 425 for 30 ~35 min.