Preheat your oven on 230 degrees Celsius or 450 degrees Fahrenheit.
Add the almonds to a bowl and cover them with hot water. Let the almonds soak for at least 10 minutes.
Season the tomatoes with some olive oil, salt & pepper. Once the oven is warm, you can grill the tomatoes.
The Calçots
You could give the calçots a quick wash, but this is not necessary. Only the inside of the calçots will be eaten.
Grill the calçots until juices run out. This may sound weird now, but will all make sense during the cooking process ;)
Romanesco Sauce
Drain the almonds and add them to a kitchen towel. Rub the outer layer off the almonds by moving the kitchen towel back and forth.
Mix the grilled tomatoes, almonds and all other sauce ingredients to a mortar/blender/food processor. Mix until you have a creamy orange sauce. Season with salt, pepper and maybe even more chili!