Hydrate the gelatin in ice cold water.
Place the chocolate in a large bowl.
Heat together the first part of the cream, the inverted sugar syrup, and the glucose.
Remove from heat and add the thyme and lemon rind.
Cover and leave to infuse for 12 minutes.
Strain the infusion, bring to 45º C and add the (previously hydrated) gelatin.
Stir until dissolved.
Add the second part of the cream, which should be cold.
Mix to achieve an even consistency.
Refrigerate for at least 12 hours.
Whip until soft peaks occur.
Reserve in a piping bag with nozzle.