Avocado, Tuna and Marinated Onion Tostadas

Ingredients:

½ to 1 red onion, sliced into thin rings

½ tsp salt

½ tsp sugar

½ cup apple cider vinegar or rice vinegar

½ cup water

½ tsp crushed hot pepper flakes

1 can of tuna in water, 184 g/6.5 oz, drained

Juice from 1 lime

⅛ tsp salt

4 corn tostadas (grilled, homemade or store bought corn tortillas)

4 cherry tomatoes, quartered

1 Avocado from Mexico, diced

Fresh cilantro

Fresh ground pepper

Lime quarters and hot sauce, to serve

Directions:

• Rinse the onions with boiling water and drain.
  
• In a large, 1 L Mason jar, mix the salt, sugar, vinegar, water and hot pepper flakes. Add the rinsed onions and marinate at room temperature for at least 30 minutes.
  
• Mix the tuna and lime juice in a bowl, using a fork. Salt and pepper to taste, and adjust seasoning as desired.
  
• Distribute the tuna mixture evenly on the 4  tostadas. Garnish with cherry tomatoes, avocado, marinated onions and fresh cilantro. Add pepper and serve with lime quarters and hot sauce.
  

*Serves 2