Soak the eggplant in some salted water while you prepare the sauce.

In a small bowl, mix together the mirin, miso, sake and sugar. Set this aside for the end of the recipe.

Start the oil heating in a wok if you have one. I used a medium saucepan so I could get by with using less oil and still having some depth. Drain the eggplant and blot dry with a paper towel. You want the oil about 350. If you drop a cube of bread in, it should sizzle.

Gently slide some of the eggplant pieces in and fry a few minutes until golden brown and cooked through. (A fork or skewer should easily go through.) Remove and drain on paper towels as small batches are done.

Now if you're not frying anything else, drain the oil from the pan and reserve for another use. Since I was also going to fry some chicken, I just added a small bit of oil to a small frying pan.

Cook the pepper until crisp-tender, about 2 minutes. Add the eggplant back to the pan, then stir the miso sauce over it all and cook while stirring a few minutes to blend flavors and coat the vegetables.  Transfer to a serving dish and garnish with the sesame seeds and sesame oil.