Take butterfly pea flower and wash it.Remove the lower green part of the flowers.

Heat 2 cups of water in a pan. Now add butterfly pea flowers, cinnamon stick and ginger slices in it. Now boil it for 6-7 minutes.

Now the color of this water will change then cover it and keep for 10-15 minutes.

Now take honey in a cup and pour in prepared blue tea and stir and add lemon juice while serving.when you add lemon colour of tea will change.

Now take the remaining tea in a glass to make cold tea, cool it completely in the fridge and serve it with lemon.