Wrap washed beetroot in foil and bake in gas Mark 4 / 180C for about 40 minutes until cooked through.
Leave to cool.
Melt butter in an ovenproof non-stick 20cm frying pan over a low heat.
Add the sugar, vinegar and thyme and season.
Stir well over a low heat until the sugar has dissolved and then turn up the heat until bubbling. Without stirring let the mixture bubble until just beginning to turn a pale gold.
Peel the beetroot and slice into 1 cm rings.
Arrange over the base of the frying pan, fanning out the slices and completely covering the base.
Roll the pastry into a 24cm disc and cover the beetroot tucking in the edges.
Prick all over to release steam.
Preheat oven gas Mark 5/190C and bake for 25-30 minutes or until puffed and golden.
Cool in the pan for 10 minutes.
Turn onto a plate.
Top with Woolsery goats cheese or mature cheddar.
Leave to melt the cheese slightly then drizzle with honey and garnish with mint or basil leaves.