Crust:

1. Cut butter into flour until the mixture is crumbly, like cornmeal. Add cheese. Mix. Add water (bearing in mind that the mix comes together as you work with it – you don’t want it too sticky). Work the dough into a ball, wrap in plastic and refrigerate for at least 30 minutes.
2. Mix together sliced pears and lemon juice in a medium-sized bowl. Add brown sugar, cloves and flour and mix well. (Don’t start this until you’re just about ready to bake – sugar makes fruit release its juice.)
3. Roll out the dough on floured surface, until it is about 1/8 to 1/4-inch thick. Place fruit in center. Wrap dough around it.
4. Top with cheese and walnuts. Brush with a lightly whisked egg.
5. Bake at 400 for 50 minutes.