Roast almonds: preheat oven to 160°C, spread almonds on a baking sheet and roast for about 8 minutes, without browning, cool.
Blend cold almonds in a mini blender (food processor) until they start to release oil and turn into a smooth, liquid paste.
Add oil and salt. Blend for a bit longer for perfect smoothness.
Add liquid and cooled white chocolate (melted in a water bath or microwave) and mix thoroughly / blend. Pour into a jar and set aside for a few hours until set.