Transfer contents of pan to the blender; add the peanuts, pepitas and 1/8 cup of sesame seeds. Secure the lid and using a kitchen towel, hold lid down. Blend on high until smooth; add sauce back to the same pan and cook to medium heat. Add the remaining broth, taste for salt and pepper. Add the chicken back into pan; cover and cook at a low simmer for 40 minutes. Let stand for 10 minutes.