In a generous sized mixing bowl, combine: milk, yogurt, lemon juice, lemon zest, honey or maple syrup and lemon extract if using. Add chia seed and whisk ingredients well before carefully transferring the pudding into serving dishes of choice.The recipe renders approximately 2 cups/500 mL of pudding so you can divide into two, 1 cup/250 mL portions or four half cup/125 mL portions, as you wish.Cover the puddings with wrap and carefully place in fridge for at least 20-30 minutes before enjoying (See Notes on pudding texture and appearance below).Just before serving top the puddings with additional lemon zest (if desired), berries and a sprig or two of basil or mint.