Delia Smith Slow Cooker Chicken Casserole Recipe
This Delia Smith Slow Cooker chicken casserole is a comforting one-pot meal made with chicken thighs and drumsticks, potatoes, carrots, leeks, celery, onion, garlic, and fresh rosemary. The chicken is browned first, then slowly cooked in a savory chicken stock until tender and full of flavor.
This Delia Smith chicken casserole slow cooker version takes about 20 minutes to prepare and cooks gently for several hours, making it ideal for busy days. A squeeze of fresh lemon juice at the end brightens the rich, herby gravy and brings all the flavours together.
Slow Cooker Chicken Casserole Ingredients
- 1 tablespoon olive oil
- 8 chicken pieces: Chicken thighs and drumsticks work particularly well.
- 1 onion: Finely sliced.
- 2 garlic cloves: Crushed.
- 2 celery sticks: Thickly sliced.
- 2 carrots: Cut into 2cm chunks.
- 2 leeks: Cut into 2cm chunks and washed thoroughly.
- 600g potatoes: Peeled and cut into large chunks.
- 1 level tablespoon plain flour
- 450ml hot chicken stock
- 2 fresh rosemary sprigs
- Juice of ½ lemon
- Salt and freshly milled black pepper
How To Make Delia Smith Chicken Casserole in a Slow Cooker
1. Brown the Chicken
Heat the olive oil in a large frying pan over medium-high heat. Season the chicken pieces with salt and freshly milled black pepper, then place them in the hot pan.
Brown the chicken for about 10 minutes, turning occasionally so it develops a golden colour on all sides. Transfer the browned chicken to the slow cooker.
2. Cook the Vegetables
Add the sliced onion, crushed garlic, celery, carrots, and leeks to the same frying pan.
If the pan looks dry, add a small splash of olive oil. Cook the vegetables gently for about 5 minutes, stirring occasionally, until they begin to soften and take on some colour.
3. Thicken the Stock
Sprinkle the plain flour over the vegetables and stir for about 1 minute.
Gradually add the hot chicken stock, stirring continuously. Scrape the bottom of the pan as you stir to loosen the browned pieces left behind from the chicken.
Bring the mixture to a gentle simmer and cook until the liquid has thickened slightly.
4. Assemble the Casserole
Place the potato chunks in the bottom of the slow cooker.
Arrange the browned chicken over the potatoes, then pour the vegetable and stock mixture over everything. Add the fresh rosemary sprigs.
5. Slow Cook
Cover the slow cooker with its lid and cook on:
- Low: 6–7 hours
- High: 3–4 hours
The chicken should be very tender and beginning to pull away from the bone, while the potatoes should be completely soft.
6. Add the Lemon
Just before serving, squeeze the juice of ½ lemon into the casserole.
Stir gently and taste for seasoning, adding more salt or freshly milled black pepper if needed.
The fresh lemon juice adds brightness to the slow-cooked flavours without making the casserole taste overly sharp.
What Makes a Good Slow Cooker Chicken Casserole?
Brown the Chicken First
Browning the chicken before it goes into the slow cooker adds colour and extra flavour. The slow cooker is excellent for gently cooking the meat, but it cannot create the same browned exterior as a hot frying pan.
Don’t Add Too Much Liquid
A slow cooker holds in moisture, so the liquid does not reduce in the same way it would in an uncovered pan or oven.
If the finished casserole has a thinner sauce than you prefer, remove the lid and cook on High for the final 30 minutes to allow some of the liquid to evaporate.
Put the Potatoes at the Bottom
Place the potatoes at the bottom of the slow cooker before adding the chicken and other ingredients.
Root vegetables can take longer to become tender, so positioning them at the bottom helps them cook properly.
Finish With Fresh Lemon
Add the lemon juice right at the end rather than at the beginning.
The fresh juice lifts the rich, slow-cooked flavours and gives the finished chicken casserole a fresher taste.
Chicken Thigh Casserole Slow Cooker
Chicken thighs are particularly well suited to slow cooking because they remain tender during the long cooking time.
For a chicken thigh casserole slow cooker version, use chicken thighs in place of a mixture of thighs and drumsticks. Keep the pieces whole and follow the same cooking method.
The finished chicken should be tender and cooked through, with the potatoes and vegetables soft enough to eat easily.
What To Serve With Chicken Casserole
This casserole already contains chicken, potatoes, carrots, leeks, and celery, so it can be served as a complete meal.
A slice of crusty bread is useful for soaking up the rosemary and lemon gravy.
For extra vegetables, serve it with:
- Steamed green beans
- Buttered cabbage
- Other simple green vegetables
You can also serve mashed potato alongside it if you prefer, although the casserole already contains potatoes.
Can You Make Chicken Casserole in the Oven?
Yes. You can prepare the chicken and vegetables in the same way, then transfer everything to a lidded casserole dish.
Cook at 160°C (140°C Fan / Gas Mark 3) for about 1 hour 30 minutes, or until the chicken is tender and the potatoes are soft.
Check the casserole halfway through cooking and add a little more chicken stock if the liquid appears too low.
Easy Variations
Add Turkey Bacon
Fry 100g smoked turkey bacon, chopped until crisp before browning the chicken. Add the cooked turkey bacon to the casserole for extra smoky flavour.
Make It Creamy
For a richer version, stir 3 tablespoons of double cream or crème fraîche into the finished casserole just before serving.
Use Sweet Potato
Replace the regular potatoes with large chunks of sweet potato. They add a natural sweetness while providing a similar hearty texture.
Use Apple Juice
Replace 150ml of the chicken stock with 150ml apple juice for a sharper, more complex flavour. This works particularly well when making the casserole in the oven.
How To Store Chicken Casserole
Allow leftover casserole to cool, then transfer it to an airtight container and refrigerate for up to 3 days.
Reheat in a saucepan on the hob until piping hot throughout before serving.
The casserole can also be frozen for up to 3 months. Remove the chicken bones before freezing and divide the casserole into portions. Thaw overnight in the refrigerator before reheating thoroughly.
Can You Prepare the Casserole Ahead?
Yes. You can brown the chicken and prepare the vegetables and stock mixture the night before.
Keep the prepared ingredients separately in the refrigerator. The following morning, assemble everything in the slow cooker and begin cooking.
This makes the recipe particularly convenient when you want to come home to a ready-made dinner.
Nutrition Information
Estimated per serving, based on 4 servings:
- Calories: 560 kcal
- Fat: 25g
- Saturated Fat: 6g
- Carbohydrates: 48g
- Fibre: 7g
- Protein: 39g
- Sodium: 650mg
Nutrition information is estimated and will vary depending on the chicken pieces, stock, and other ingredients used.
Try More recipes:
Frequently Asked Questions
Can I use chicken breasts instead of thighs?
Yes, but chicken breasts can dry out more easily during slow cooking. If using breasts, reduce the cooking time to around 4–5 hours on Low and keep them whole rather than cutting them into pieces.
Can I make this chicken casserole gluten-free?
Yes. Replace the plain flour with cornflour mixed with a little cold water. Add the mixture during the final 30 minutes of cooking to thicken the sauce.
Can you put raw chicken straight into a slow cooker?
Yes, but browning the chicken first gives the casserole better colour and a deeper flavour. It also creates browned pieces in the frying pan that can be incorporated into the stock.
Is chicken thigh good for a slow cooker casserole?
Yes. Chicken thighs are particularly suitable for slow cooking because they stay tender and moist during longer cooking times.
How do I thicken slow cooker chicken casserole?
If the sauce is too thin, remove the slow cooker’s lid and cook on High for about 30 minutes to allow excess liquid to evaporate.
Can I freeze chicken casserole?
Yes. Freeze the cooked casserole for up to 3 months. Remove the chicken bones first, divide into portions, and thaw overnight in the refrigerator before reheating.
How do I make the best ever chicken casserole slow cooker?
For a best ever chicken casserole slow cooker result, the key steps are browning the chicken first, using a sensible amount of stock, placing the potatoes at the bottom of the slow cooker, and finishing the casserole with fresh lemon juice.
Delia Smith Slow Cooker Chicken Casserole Recipe
Course: DinnerCuisine: BritishDifficulty: Easy4
servings20
minutes6
hours560
kcalA slow cooker chicken casserole made with chicken thighs, carrots, leeks, celery, potatoes, and rosemary stock, finished with fresh lemon juice. Just 20 minutes prep, then 6 to 7 hours on Low. Serves 4.
Ingredients
1 tablespoon olive oil
8 chicken pieces, preferably thighs and drumsticks
1 onion, finely sliced
2 garlic cloves, crushed
2 celery sticks, thickly sliced
2 carrots, cut into 2cm chunks
2 leeks, washed and cut into 2cm chunks
600g potatoes, peeled and cut into large chunks
1 level tablespoon plain flour
450ml hot chicken stock
2 fresh rosemary sprigs
Juice of ½ lemon
Salt and freshly milled black pepper, to taste
Directions
- Heat the olive oil in a frying pan. Season the chicken and brown for about 10 minutes, turning occasionally. Transfer to the slow cooker.
- Add the onion, garlic, celery, carrots, and leeks to the pan. Cook for 5 minutesuntil slightly softened.
- Stir in the flour and cook for 1 minute. Gradually add the hot chicken stock, stirring until slightly thickened.
- Place the potatoes in the bottom of the slow cooker. Add the chicken, followed by the vegetables and stock mixture. Add the rosemary.
- Cover and cook on Low for 6–7 hoursor High for 3–4 hours, until the chicken is tender and the potatoes are cooked through.
- Stir in the lemon juice just before serving. Taste and adjust the seasoning.
Notes
- Place potatoes at the bottom of the pot to ensure they cook through.
- Add lemon juice at the end to prevent bitterness.
- Use less stock than you would for an oven casserole to avoid a watery sauce.
