Considering that Martha Washington was a slave owner, and that her slaves cooked and made concoctions (among many other things), it is an insult to merely call this “Martha Washington’s recipe.” She might have had her slaves add or subtract from a concoction for her purposes, but she certainly didn’t sit around in a kitchen and mix the stuff up herself.
On another note, sugarcane isn’t native to the Western Hemisphere. Columbus brought some stalks during his second voyage in 1493. Europe’s royal families were already importing sugar and sugarcane from the Ottoman Empire, who in turn assimilated both sugarcane and sugar processing techniques from South Asia/Southeast Asia.
Please get the history correct before writing something that is full of historical errors.