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–+ servings

Easy Dijon Mustard Chicken Marinade

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A quick, flavor-packed marinade that transforms chicken into juicy, caramelized grilled bites. Dijon mustard, lemon juice, and olive oil do the heavy lifting, while garlic and oregano round out the flavor. It takes just minutes to put together, and the marinade does all the work in the fridge.
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Prep Time 1 minute
Cook Time 2 minutes
Total Time 3 minutes
Servings: 4 servings
Course: Main Course
Cuisine: American
Ingredients Equipment Method Notes

Ingredients
  

  • 1.5 lb chicken cut into 1-inch cubes for even cooking
  • 3.5 tbsp olive oil extra virgin recommended
  • 2 tbsp lemon juice freshly squeezed for best acidity
  • 1 tbsp water
  • 1.5 tbsp Dijon mustard Grey Poupon recommended
  • 1 tsp oregano
  • 1.5 tsp garlic powder
  • 1.25 tsp salt
  • 1 tsp honey optional, for balance
  • 1/2 tsp freshly ground black pepper

Equipment

  • Grill
  • Mixing bowl
  • Whisk
  • Instant-read thermometer
  • Airtight container or covered bowl

Method
 

  1. In a bowl or container, combine the olive oil, lemon juice, water, Dijon mustard, and honey (if using). Whisk until the mixture is smooth and fully emulsified. Stir in the oregano, garlic powder, salt, and black pepper, making sure the dried seasonings are evenly distributed throughout the liquid. At this point, you can taste the marinade and adjust the salt or acidity as needed before adding the chicken.
  2. Add the cubed chicken to the marinade, turning and stirring gently to coat every piece evenly. Cover the container and refrigerate for a minimum of 3 hours, or up to overnight for a deeper, more penetrating flavor. During this time, the lemon juice tenderizes the chicken while the mustard and garlic work their way into the meat.
  3. Preheat your grill to 425°F. Pull the chicken out of the refrigerator about 10 minutes before you plan to grill, allowing it to approach room temperature for more even cooking. Place the chicken pieces on the hot grill grates in a single layer, working in batches if needed to prevent crowding. Cook for approximately 5 minutes on the first side without moving the pieces, allowing a caramelized crust to develop.
  4. Flip each piece of chicken and cook for another 5 minutes on the second side. Check doneness with an instant-read thermometer — the chicken is ready when it reaches an internal temperature of 165°F at the thickest point. Remove the chicken from the grill and let it rest for 3 to 5 minutes before serving so the juices redistribute and the meat stays moist.

Notes

Marinate the chicken for at least 3 hours but no longer than 12 — the lemon juice is acidic enough that extended marinating can make the texture mushy. If you don't have Dijon, whole-grain mustard is the best substitute; yellow mustard works in a pinch but produces a flatter flavor. Leftover cooked chicken keeps in an airtight container in the refrigerator for up to 3 days; reheat gently in a skillet or at 50% power in the microwave to avoid drying it out. Raw marinated chicken can be frozen for up to 2 months — thaw overnight in the fridge before grilling. This marinade works equally well on whole chicken breasts or thighs; just increase grill time to 15–20 minutes and always verify doneness with a thermometer.

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