Spaghetti with Mussels and Tiramisu Dip

Name: Spaghetti with Mussels and Tiramisu Dip
Prep time: 25 min
Cook time: 30 min
Total time: 30 min
Yield: 4 portions
Ingredients: 250 g mascarpone cheese; 120 g double cream; 30 - 50 g caster sugar; 40 g coffee liqueur (e.g. Kahlua®); boiling water; 1 ½ tsp fine sea salt; 320 g dried spaghetti; 2 garlic cloves; 60 g shallots; 20 g extra virgin olive oil; 280 g cherry tomatoes; 400 g frozen mussel meat; 25 g white wine; 1 pinch ground black pepper; 1 Tbsp fresh parsley leaves; 1 - 2 tsp cocoa powder; 8 sponge finger biscuits