Step 1

Preheat the oven to 350 degrees F (175 degrees C).

Step 2

Combine Dijon mustard, grainy mustard, honey, soy sauce, tarragon, and ginger in a large bowl. Rinse chicken thighs under cold water and pat dry with paper towels. Add chicken thighs to the bowl and toss to coat. Transfer to a baking pan and spoon sauce over the thighs.

Step 3

Bake in the preheated oven until chicken is no longer pink in the center and the juices run clear, about 45 minutes. An instant-read thermometer inserted into the center should read at least 165 degrees F (74 degrees C). Spoon sauce over chicken thighs and serve.