Combine chicken and rest of ingredients in a large bowl. Mix with hands well. Cover and let marinate for at least 30 minutes but up to overnight.
Heat grill to medium-high heat.
Once the grill is hot, grill thighs for 5-7 minutes per side. To check if the chicken is done, either use a thermometer in the thickest part of the thigh to read 165 F, or cut one thigh in the thickest part and make sure there isn't any pink.