Ingredients:
- 2 lbs (900g) boneless, skinless chicken thighs, cut into 1-inch pieces
- 1 medium yellow onion, chopped (approx. 1 cup / 150g)
- 2 carrots, peeled and diced (approx. 1 cup / 150g)
- 2 celery stalks, diced (approx. 1 cup / 150g)
- 1 cup (120g) frozen peas
- 1 cup (120g) frozen corn
- 1 teaspoon dried thyme
- 1/2 teaspoon dried rosemary
- 1/4 teaspoon black pepper
- 1/2 teaspoon salt
- 4 tablespoons (60g) unsalted butter, melted
- 4 tablespoons (30g) all-purpose flour
- 4 cups (950ml) chicken broth
- 1 cup (240ml) heavy cream
- 1 sheet (14.1 oz / 400g) frozen puff pastry, thawed (but still cold!)
- 1 large egg, beaten (for egg wash)
Instructions:
- Chop the onion, carrots, and celery.
- In the slow cooker, combine chicken, chopped vegetables, peas, corn, thyme, rosemary, salt, and pepper.
- In a separate bowl, whisk together melted butter and flour until smooth (this is your roux – it thickens the sauce).
- Pour chicken broth into the slow cooker. Add the butter/flour mixture and stir well to combine.
- Cover and cook on low for 4-6 hours or on high for 2-3 hours, or until the chicken is cooked through and easily shreds with a fork.
- Stir in the heavy cream during the last 30 minutes of cooking.
- While the filling is cooking, gently unfold the thawed puff pastry on a lightly floured surface. Cut the pastry to fit the top of your slow cooker, allowing for a bit of overhang. Cut vents in the pastry to allow steam to escape.
- Carefully place the puff pastry over the chicken filling. If you want it extra golden, brush the pastry with the beaten egg (egg wash).
- Cook on high until golden brown, about 20-30 minutes. Watch carefully to prevent burning! Rotate the slow cooker, if needed, to ensure even browning.
- Let the pot pie cool slightly for 10 minutes before serving.