No Bake Yule Log (Vegan-Friendly)

For the chocolate biscuit roll:

• 400 g digestive biscuits (Double check the ingredients to ensure they're vegan- most brands are.)
• 100 g sugar
• 30 g cocoa powder
• 160 ml cold water
• 70 g Vegan block butter

For the filling:

• 80 g Vegan block butter
• 200 g icing sugar
• 1 Tablespoon unsweetened soy milk
• 1 Teaspoon vanilla extract

For the chocolate ganache:

• 200 g Semi-sweet vegan chocolate at around 40-50% cocoa (I used Tesco dark cooking chocolate)
• 80 ml unsweetened soy milk