Prepare honey syrup by mixing 2 tablespoons honey with 1 tablespoon warm water until fully dissolved. Set aside to cool.
Add diluted apple cider vinegar, fresh lemon juice, honey syrup, and pasteurized egg white to cocktail shaker without ice.
Perform a dry shake (without ice) vigorously for 15-20 seconds to create initial foam structure.
Add ice cubes to shaker and shake vigorously again for another 15-20 seconds until well-chilled and foamy.
Double strain through fine-mesh strainer into rocks glass filled with fresh ice.
Add 2 dashes of halal-certified Angostura bitters on top of foam, if using.
Garnish with fresh lemon wheel and thyme sprig. Serve immediately while foam is at its peak.