Indulgent Chocolate Hazelnut Tart

Ingredients

• 10.5 oz. 300 grams of crushed digestive biscuits (or similar)
• 1 tablespoon of all purpose flour
• 4.5 oz. 125 grams of unsalted butter
• 1 fl. oz. (30 ml of sweet sherry (optional))
• Pinch of salt
• 3.5 oz. 100 grams of 80% cocoa dark chocolate
• 7 oz. 200 grams of shelled hazelnuts
• 10.5 oz. 300 grams 80% cocoa dark chocolate, broken up into small chunks
• 5 oz. 140 grams confectioners sugar
• Finely grated zest of 1 orange
• 2 large eggs
• 1 Tablespoon of flour
• 3 Tablespoons of sweet sherry