300g/2 boxes of gluten free HobNobs or similar
175g butter/dairy free alternative
400g of condensed milk
3 egg yolks
300ml of dairy free double cream (trying to reduce the lactose levels but normal cream is fine)
2Tbsp of icing sugar
Heat the oven to 160*C fan/140*c
Smash up the two packets of HobNobs until they are crumbs.
Melt the butter until it is liquid either in a microwave or a pan.
Add the butter to the crumbs, making a sticky mixture.
Put the mix into a loose based tart tin, making sure you fully line the base and sides.
Bake in the oven for 12 minutes, remove and cool. I cooled mine in the fridge.
While base is cooling put egg yolks in a bowl and whisk until they are thicker and foamy. About 3-4 minutes should be enough.
Add the condensed milk and whisk for a further 3 minutes.
While whisking juice and zest the four limes. These should slowly be added to the mixture as the whisk runs for a further 4 minutes.
Pour the mixture into the now cooled base, put back in the oven for 15 minutes. Cool and then chill in the fridge for approximately 5 hours or more.
When ready to serve whip up the double cream and icing sugar with a whisk on a high speed.
Once thick enough consistency, use to decorate top of tart.
Remove from base, slice, serve and enjoy!!