Spicy Crockpot Lentil Soup

Crock Pot
2 Add all ingredients except the parsley and lime to a slow cooker.
3 Cook on low for 6 to 8 hours.
4 Add the lime and parsley.
5 Serve.
Stove Top
8 In a heavy bottomed pot, add oil followed by chopped onion.
9 In medium flame, cook it until it becomes tender by stirring occasionally.
10 Add garlic, cook it until garlic slightly discolors.
11 Add finely chopped chipotle and adobo sauce.
12 Add tomato puree and continue to stir for another minute.
13 Now add lentil, cubed celery stalks, cubed carrots, salt, and water.
14 Bring the soup to boil, and simmer.
15 Cover and cook it for about 40 mins. Do check and stir in between.
16 Use a wooden ladle to mash the lentils to coarse texture or blend in the blender for a smooth texture. 
17 Add lime juice, chopped fresh parsley. 
18 Transfer it to a serving bowl. Top it with a blob of sour cream(optional) and serve.
19 Can be served warm or at room temperature along with tortilla chips or strips.