Crockpot Sweet Onion Dijon Chicken for an Easy Weeknight Dinner Tips, FAQ & printable recipe

Tips for success

For a thicker sauce, you can remove the chicken once cooked and stir in a small amount of cornstarch slurry to the liquid in the slow cooker, then heat on high for 10 minutes until thickened. This adds a silky finish that clings better to the chicken.

If the onions are preferred even softer, they can be placed at the bottom of the cooker underneath the chicken.

However, placing them on top allows them to steam in the aromatic juices, preserving their shape and providing a nice textural contrast to the tender, braised chicken.

Variations

• Creamy Dijon Chicken: Stir in a quarter cup of heavy cream or sour cream during the last 30 minutes of cooking for a richer, more velvety sauce consistency.
• Vegetable Medley: Add sliced carrots or mushrooms along with the onions to increase the vegetable content and add extra earthy depth to the braising liquid.

Storage and make-ahead

Fridge

Keep in an airtight container for up to 3 days.

Freezer

Store in a freezer-safe container for up to 2 months.

Reheat

Gently reheat in a microwave or on the stovetop with a splash of broth to maintain moisture.

Store any leftovers in an airtight container to maintain freshness and prevent the absorption of other odors in the refrigerator.

Ensure the chicken is cooled to room temperature within 2 hours of cooking before placing it in the fridge. Properly stored, it will remain safe and flavorful for up to three days.

This dish is excellent for meal prep as the flavors often deepen after sitting for a day. You can assemble the ingredients in the slow cooker insert the night before and keep it in the refrigerator, then simply place it in the base and turn it on in the morning.

Serving ideas

Serve the chicken warm, spooning a generous amount of the Dijon sauce and the softened onions over the top.

It pairs beautifully with simple sides like roasted baby potatoes, steamed green beans, or a crisp garden salad to provide a refreshing contrast to the savory, creamy sauce.

For a more substantial meal, serve the chicken alongside a portion of cooked quinoa or basmati rice.

These grains are excellent for absorbing the flavorful Dijon broth, ensuring that none of the delicious sauce goes to waste. A sprinkle of fresh herbs can add a bright finish just before serving.

Frequently asked questions

Recipe card

Crockpot Sweet Onion Dijon Chicken for an Easy Weeknight Dinner

Prep 10 minCook 4 hRest 5 minTotal 4 h 15 minServes 4

Ingredients

• 4 whole boneless skinless chicken breasts
• 2 cups sweet onion, sliced into thick rings
• 1 tsp dried thyme
• 1 tsp garlic powder
• 1/2 cup chicken broth
• 3 tbsp Dijon mustard

Instructions

1. Place the raw boneless skinless chicken breasts in a single layer at the bottom of the slow cooker insert. Ensure they are laid out flat to promote even cooking throughout the process.
2. Arrange the thick sweet onion rings evenly over the top of the chicken breasts. Sprinkle the dried thyme and garlic powder uniformly across the onions and chicken to ensure consistent seasoning.
3. In a small bowl, whisk together the chicken broth and Dijon mustard until smooth. Pour this mixture over the chicken and onions in the slow cooker, ensuring it coats the ingredients well.
4. Cover the slow cooker and cook on low for 4 hours. Once cooked, verify the chicken reaches an internal temperature of 165°F (74°C). Allow the chicken to rest for 5 minutes before serving with the sauce.

Contains: mustard

Estimated nutrition per serving

Calories

280

Protein

35 g

Carbohydrates

8 g

Fat

12 g

Fiber

1.5 g

Sugar

4 g

Sodium

450 mg

Automatic estimate from the ingredient list, not laboratory-verified.