Caldo de Camaron (Mexican Shrimp Soup) - Chili Pepper Madness

Ingredients

• 2 guajillo peppers (stemmed and seeded, and roughly chopped)
• 1 cascabel pepper (stemmed, seeded, and roughly chopped (or use an extra guajillo))
• 1 chile de arbol (roughly chopped (optional, for extra spicy))
• 2 cups hot water
• 1 tablespoon vegetable oil
• 1 small onion (chopped)
• 1 large tomato (chopped)
• 3 cloves garlic (chopped)
• 1 pound large shrimp (peeled and deveined, shells reserved)
• 4-5 cups water
• 1 tablespoon dried epazote (or use cilantro or Mexican oregano)
• 1 bay leaf
• Salt and pepper to taste
• 1 pound yellow potatoes (peeled and diced)
• 8 ounces carrots (peeled and diced)
• 2 large limes (+ extra for serving)
• Fresh chopped cilantro for garnish/serving