Heat a small saucepan over medium heat. Add olive oil and sesame oil the garlic and ginger. Saute for 1 minute until fragrant. Add the brown sugar and cook for 2 minutes. Sit in the soy sauce, mirin and sake. Bring to a slow boil stirring occasionally until thick about 10 to 12 minutes. Add the sesame seeds. Done!
Notes
Use premium sake only. Check the label with these infographics they are premium and are gluten free.