1.
Heat the olive oil in a deep skillet on a low heat. Add the apple and onion to oil and brown for about 4 minutes.
2.
Add the butternut squash and chicken to the skillet. Cook over medium heat until the chicken is white through and through (about 10 minutes). Then add wine and black pepper. Stir.
3.
Make the vegetable stock by adding the stock cube to the boiling water in a cup.
4.
Add stock to skillet and cook on low until stock has reduced by 2/3rds and butternut squash is tender, about 20 minutes.
5.
If the squash is not soft but the stock has reduced then top up with a little boiling water and reduce again.