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Dinner · Part 2 of 3: Instructions

Slow Cooker Speculoos Chicken Carbonnade for a Rich Dinner Step-by-step instructions

A close-up of slow-cooked chicken thighs covered in a rich, dark glossy sauce served on a white plate.
Prep
Cook
Total
Serves
4
Includes 5 min resting

Before you start

Before starting, ensure all ingredients are ready and measured. Peel and thinly slice the onions to guarantee they soften properly during the cooking process.

Have your dark beer at room temperature or slightly chilled, and crush the speculoos biscuits into fine, even crumbs to help them incorporate smoothly into the sauce. Check that your slow cooker is clean and positioned in a safe, dry area, and verify that the chicken is thoroughly thawed if it was previously frozen.

Ingredients at a glance (4)
  • 2 lb chicken thighs, bone-in and skin-on
  • 2 large yellow onions, thinly sliced
  • 1/2 cup speculoos biscuit crumbs
  • 12 oz dark beer

Instructions

Layering the ingredients

  1. Prepare the slow cooker base
    Place the raw chicken thighs in the bottom of the slow cooker. Scatter the thinly sliced onions evenly over the top of the chicken pieces to ensure they cook down into the sauce.
    Look for The chicken should be arranged in a single layer if possible.
    Tip Ensure the slow cooker is on a stable, heat-resistant surface.

The chicken should be placed firmly at the base of the slow cooker to ensure it braises directly in the juices. The onions are distributed evenly on top to act as a sweet, aromatic layer. Check that the chicken is arranged in a way that allows the heat to reach all pieces uniformly, ensuring a consistent cook across the entire batch before moving to the next stage of the process.

Seasoning and liquid addition

  1. Add aromatics and liquid
    Sprinkle the crushed speculoos biscuit crumbs directly over the onions and chicken. Pour the dark beer over the entire mixture, ensuring the crumbs are slightly moistened.
    Look for The liquid should partially submerge the chicken.
    Tip Pour slowly to avoid splashing the sides of the cooker.

At this stage, the speculoos crumbs and dark beer create the foundation of the braising liquid. Ensure the crumbs are well-distributed so they don't clump together, which helps in achieving a smooth, thickened sauce.

The beer should cover the majority of the chicken. Once the lid is placed on the slow cooker, the aromatic profile will begin to develop as the liquid gently simmers and interacts with the spices.

Slow cooking and final check

  1. Slow cook and serve
    Cover the slow cooker and cook on low for 4 hours. Once finished, ensure the chicken reaches an internal temperature of 165°F (74°C). Serve immediately on a warm plate, allowing it to rest for 5 minutes before eating.
    Look for The sauce should be glossy and thickened.
    Safe temperature 165°F (74°C) internal temperature (poultry)
    Tip Use a meat thermometer to check the thickest part of the thigh.

The chicken is finished when the meat is succulent and the sauce has reduced to a rich, dark glaze. The onions should be completely translucent and soft. Before serving, verify the internal temperature of 165°F (74°C). The scent should be warm and savory with hints of malt and spice, indicating the flavors have fully melded into a cohesive and delicious meal.

Common mistakes

Avoid using a beer that is too hoppy or bitter, as this can overpower the delicate spices of the speculoos biscuits. Do not skip the step of slicing the onions thinly; thick chunks will not caramelize evenly and may result in a watery sauce.

Additionally, be careful not to overcrowd the slow cooker, as this can prevent the heat from circulating properly and lead to uneven cooking. Always monitor the internal temperature rather than relying solely on the clock.

How to tell it’s done

The chicken is perfectly cooked when it is tender enough to pull away easily from the bone. Using a reliable meat thermometer, insert the probe into the thickest part of the thigh, making sure to avoid touching the bone.

The internal temperature must reach at least 165°F (74°C) to ensure the chicken is safe to consume. The sauce should have a deep, glossy appearance and a consistency that coats the back of a spoon.

  • Poultry: 165°F (74°C) in the thickest part

Coming up in Part 3: common questions

  • Can this dish be made in an oven instead of a slow cooker?
  • Why does the sauce need to be thick?
  • Is it necessary to use bone-in chicken thighs?

Also in Part 3: variations (Mushroom Carbonnade, Bacon Infused), storage and make-ahead, and the printable recipe card.

Up next · Part 3 of 3

2 variations · storage & make-ahead · 3 answers · printable card

Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)