Place a stool beside the stove and get comfy because you aren't moving for the next hour or so!
Place the ingredients in a thick-bottomed pot, and bring to a simmer on low to medium heat.
Do not leave the pot and stir frequently! (I use a whisk to combine the ingredients until the sugar is melted, then switch to a wooden spoon.)
For the first 45 minutes or so, let it come to a bubbling simmer, and gently stir until the bubbles disappeared, then repeat.
As it begins to turn golden, it will start to get foamy, almost like when you're making candy. At this point, stir constantly so the bottom doesn't burn.
It will begin to thicken soon after and you'll notice that the spoon will leave a path in the mixture.
As soon as it begins to thicken, pull it from the heat and pour into a glass jar.
Let cool before putting a lid on the jar and then set into fridge to keep.