Anna's Apple Chicken Sausage Popovers

Step 1: Preheat oven to 425F.

Step 2: Sift the flour and salt into a bowl and make a hole in the centre.

Step 3: Crack the eggs and add them, one at a time.

Step 4: Using a whisk, beat the milk into the eggs and flour until you have a smooth batter, with no lumps.

Step 5: Stir in the chives and mustard if using.

Step 6: Add 1 tsp of oil to each muffin cup and heat the tray in the oven for 3 minutes

Step 7: Take the hot tray out of the oven and add some sausage to each each hole.

Step 8: Put the tray back into the oven for 4 minutes.

Step 9: Remove tray and half-fill each hole with batter.

Step 10: Put it back in the oven and cook for 18-20 minutes.

Step 11: Meanwhile, heat the oil in the saucepan and stir in the brown sugar, onion and vinegar.

Step 12: Gently cook the onion for 10 minutes until soft and browned.

Step 13: Spoon the onion out of the pan onto a plate and melt the butter in the same pan.

Step 14: Add the flour and stir for 30 seconds, or until browned.

Step 15: Add the stock and bring it to a boil.

Step 16: Boil for 1 minute, and then add the onion.

Step 17: Lower the heat and the simmer for 10 minutes or until thickened.