Put 2 Tablespoons of butter in a large saucepan and melt it over medium-high heat.
Add the 2 stalks of sliced celery and the diced onion to the saucepan and sauté until 2-3 minutes, until the onion is translucent.
Add the 2 ½ cups of water, 2 cups of diced potatoes, both cans of corn, 2 chicken bouillon cubes, can of green chiles, 1 teaspoon of paprika, and bay leaf. Mix until well combined.
Bring to a boil and then reduce the heat to low. Cover and cook for 20-25 minutes, stirring occasionally until the potatoes are tender.
Add the 2 Tablespoons of flour to a small bowl. Slowly stir in a small amount of evaporated milk into the bowl of flour and whisk. A smooth and thick paste will form. Gradually stir in the remaining evaporated milk and mix until well combine.
Slowly stir in the milk mixture into the chowder.
Increase the heat and bring to a boil stirring continuously. The chowder should thicken slightly.
Once it has reached the desired thickness, remove from the heat and serve.
Top with chopped bacon and shredded cheese.