Hey, Martha Stewart gets many things right: one is simple syrup. CorpseBoy also uses a 1:1 ratio for consistent sweetening.
Gently bring one cup of sugar and one cup of water to a boil until sugar has dissolved. (I use a cup of already hot water from my glorious Zojirushi water dispenser. This way it takes virtually no time at all.) Remove from heat and let cool completely before using. After cooling, I then seal it in a mason jar for longevity.