The ginger beer brings a sharp bite that works perfectly with the spices. For more intensity, try making a spiced simple syrup with cinnamon sticks, cloves, and cardamom.
Always taste before serving and tweak the sweetness or spice if you want.
Serve super cold with lots of ice and chilled mixers. Swap some ginger beer for more club soda if you want it lighter and less sweet.
Fresh lime and thyme keep things bright so the spices don’t get heavy.