Put all ingredients in a food processor and blend until the texture is smooth. It will takes about 1 min. Transfer the sauce into a serving bowl. Garnish with the green onion and sesame seeds.
Notes
* 1 Tbsp = 15 ml, 1 cup = 250ml** If you want to learn more about Korean ingredients, check my essential Korean grocery ingredients!*** When adding sesame oil and/or nuts, be sure to use the fresh ones. Old ones can be rancid and spoil the taste of ssamjang.**** Be sure to check out alternative ingredients options from the post above.