Wash the spruce tips and put them into a pot. Pour the water over them and cover them with a plate so that they stay underwater. Let them rest there for about 12 hours (best overnight).
Cut the lemon into slices. Add the lemons and the sugar to the water and spruce tips.
Bring the mixture to the boil while constantly stirring. Make sure that the sugar has dissolved completely. Let it boil at a low flame for about 30 minutes.
Filter the spruce tips and let the syrup simmer at a low flame. Stir from time to time.
When the mixture starts to form a bubbly foam, it's time to pour it into glasses. Securely close the twist-off lid and let the honey cool down.
