[header] How to make eel sauce [title] Measure the liquids and sugar into a pot. [step] Pour 2/3 cup (130 g) of sugar into a medium-sized pot and add 4 teaspoons (8 g) of dashi , 1 cup (240 ml) of mirin, and 1/2 cup (120 ml) of sake. [substeps] Ensure that you're using dashi granules, not already dissolved dashi. 
[title] Stir and heat the mixture over high heat. [step] Turn the heat on to high and stir until the sugar is dissolved.