Halve the tomatoes horizontally, remove seeds and membrane. Brush with oil, season lightly and smoke at 250 degrees for 20 minutes. Let cool.
Cut the baguette into large cubes, dunk in very cold water in a bowl and soak for 5 minutes.
Gently squeeze the water out of the bread cubes and transfer the bread and 1 cup of bread water to the blender. Blend until smooth.
Separately add the blanched almond meal, garlic, vinegar, smoked tomatoes, 1 1/4 tsp. salt and cayenne pepper and process for about 2 minutes until the mixture is like batter.
Add the blanched almond mixture to the blended bread and blend until very smooth.
With the motor running, stream in the olive oil slowly over 30 seconds. Then stream in the remaining bread water. Process for 1 minute.
Strain the soup through a fine mesh strainer, gently coaxing the liquid out of the solids. Discard the solids. Season to taste.
Chill the soup for at least 3 hours (up to 24).
Before serving, garnish with crispy capers, crumbled crostini and toasted hazelnut chunks.