Pour the lemon juice into a small saucepan and add the zest and sugar. Stir to combine and bring to a gentle simmer. Remove from the heat and set aside.
In a medium saucepan over a low heat, bring the cream to a gentle boil and simmer for 5 minutes, stirring continuously.
Remove from the heat and whisk in the lemon syrup and pinch of ginger.
Strain the mix into a measuring jug and then pour into small ramekins.
Bring to room temperature, then chill in the fridge for at least 4 hours or until set.
Just before serving, sprinkle a generous layer of Grasmere Gingerbread® Crumbs over the top.