Start with the melting butter in the microwave, then let it cool slightly
Make biscuit & hazelnut crumbs. Biscuit crumbs can be made in a food processor or by using a zip bag and rolling pin.
Mix crumbs with warm but not hot butter and a pinch of salt until it comes together
Line a 20 cm / 8 inch loose base pie tin with the mixture and press it flat evenly and tightly. If the mixture is too runny, place it into the fridge for a few minutes. Once the crust evenly distributed, place it into the freezer while preparing the filling
Chocolate hazelnut ganache filling
Heat cream until simmering and pour onto chocolate & hazelnut paste mixture. Stir throughout or hand blend
Pour chocolate hazelnut ganache into the crust and smooth the top with an Offset spatula. Place it into the fridge and let it set for 4 hours
Once tart sets, carefully remove it from the tin and decorate with roasted hazelnut
Notes
INGREDIENT NOTES:
Measure your ingredients with a Digital scale for accuracy
Do not skip the salt, it will balance the flavors
Use good quality 82% unsalted butter and high quality chocolate with a pleasant taste that you enjoy eating on its own
Use only 100% hazelnut paste
TECHNIQUE NOTES:
Make sure you read my step-by-step instructions with all the details of how to make this tart crust. A short recipe alone is not able to cover all the necessary details, and science behind baking
Heat butter in the microwave on low heat so it does not explode:)
While preparing the crust, make sure that you press the crumbs firmly and evenly
Respect the chilling time. Chilling time is needed for the crust (butter) to set
Once the filling is in, wait until it sets, do not attempt to cut the tart before chocolate ganache actually does set in the crust