Lemon Ginger Sour

Simple Syrup

• 8 oz sugar
• 1 oz ginger, peeled
• 1 tsp edible lavender (可省略)
• 8 oz water

Lemonade

• 3 lemons, divided (2 peel and pith removed, 1 whole)
• 3 ½ oz sugar
• 21 oz water

Foam

• 4 egg whites (see Tip)
• 10 ½ oz gin
• 8 oz ice cubes
• 1 lemon, sliced into half moons, to garnish