Classic Ecuadorian Shrimp Ceviche

Ingredients

• 2 lb of cooked shrimp (if raw, cook it in beer or coconut milk for amazing flavor)
• 2 red onions sliced very thinly
• 4 tomatoes sliced very thinly
• The juice of 10-15 limes
• The juice of 1 orange
• 1/2 cup of ketchup
• 1 bunch of cilantro chopped very finely
• Salt, pepper and oil (sunflower or light olive oil)