Slice shallots and onions very thin.
Heat olive oil in a skillet over medium-high heat. Toss in onions and sauté for 2-4 minutes, then add shallots and sauté for about 5 more minutes until they start to brown.
Add vegetable broth and water and bring to a boil.
Once boiling, add the peas and return to a boil.
When the mixture starts to boil, drop the temperature to a simmer and cook 8-10 minutes, or until the peas are soft.
Remove from the heat and allow to rest for 5 minutes.
Add to a blender and remove the center pour-lid, then cover it with a towel – this will allow the soup's heat to escape and prevent a blender blow-up!
Blend on high speed until the soup is smooth and well-combined. It will look very liquid, but that's how it's supposed to be. It thickens as it cools and rests – by the time you enjoy it, it is the perfect consistency and loaded with flavor.
Serve, allow to cool, and enjoy!