Place chocolate, condensed milk, butter and vanilla into the Thermomix bowl and cook 20 min/70°C/speed 1.
To toast the almonds, place onto a baking tray in a cold oven set to 200°C and roast 8 minutes. Cool.
Add almonds to melted fudge mixture and combine 20 sec/Reverse/speed 2.
Pour into a lined 24 cm x 15 cm tin and sprinkle with a few salt flakes.
Allow to set at room temperature, and then place into the fridge. Cut into squares and serve. This does take a long time to get cold enough to cut. We suggest you leave it for 24 hours...as hard as that is, before cutting!