Pomelo and cashew salad with a lemon/lime dressing

Ingredients

• 1 head green leaf lettuce
• 1 head red leaf lettuce
• 1/2 red onion
• 1 english cucumber
• 1/2 pomelo
• 3/4 cup cashews
• dash sea salt
• dash fresh ground pepper
• 2 tablespoons lemon juice
• 2 tablespoons lime juice
• 1/4 cup brown sugar
• 1/4 cup olive oil