Heat butter and oil in a pressure cooker.
Add cinnamon and black peppercorns. Fry them on medium heat for about 1 minute.
Add onion. Fry it till it changes colour.
Add potatoes and carrots. Fry them on medium heat till the potatoes brown a bit.
Add tomatoes and salt. Mix well and fry on high heat for 2-3 minutes.
Add water and mix. Close the lid of the pressure cooker and cook till the vegetables are fully done.
While the vegetables are cooking, remove the edges of the bread slices. Cut them into cubes.
Fry them till they turn golden brown.
Remove them on a paper towel. Croutons are ready. Keep them aside.
When the pressure in the cooker is released, open it.
Using a hand blender, blend the vegetables in the broth.
Strain to remove the grainy stuff that's left and collect the strained soup in a saucepan.
Boil the soup on medium heat. Add basil leaves. Taste and check the salt.
Add fresh cream and mix.
Turn off the heat.
For serving, pour the soup into a soup bowl. Put as many croutons as you desire. Garnish with fresh basil leaves and fresh cream.