Thinly par the peel of the lemons and cover with the boiling water. When cool add the juice of the lemons, yeast nutrient and sugar, stirring vigorously to dissolve the sugar. Add the wine yeast and cover and leave for five days in a warm place, stirring daily. Strain and put into a demijohn and fit an airlock to seal the jar. Store in a warm place and allow the fermentation to work. When fermentation has ceased, rack the wine into a clean jar and place in a cooler environment and leave. When the wine is clear and stable siphon into bottles.