Beef or Chicken Fajitas Skewers

Ingredients

• 3 tablespoons (45 ml) pineapple juice
• 1/2 jalapeño, seeded and coarsely chopped
• 1 clove garlic
• Juice and zest of 1/2 lime
• 2 tablespoons (30 ml) vegetable oil
• 2 teaspoons (10 ml) chili powder
• 1/4 teaspoon (1 ml) salt
• Tabasco sauce, to taste
• 3 plum tomatoes, seeded and diced
• 1/2 jalapeño, seeded and finely chopped
• 1/4 cup (60 ml) red onion, finely chopped
• The juice of 1 lime
• 1/2 cup (125 ml) cilantro, chopped
• 2 teaspoons (10 ml) sugar
• 1 teaspoon (5 ml) salt
• 4 onions, sliced 1/4-inch (6-mm) thick
• 1 tablespoon (15 ml) olive oil
• The flesh of 2 avocados
• 1 tablespoon (15 ml) red onion, finely chopped
• 2 tablespoons (30 ml) jalapeño pepper seeded and finely chopped
• The juice of 1/2 lime
• 1 1/2 lbs (675 g) beef, cut into 32 cubes
• 1 yellow bell pepper, cut into 24 cubes
• 8 7-inch (18-cm) tortillas
• 8 wooden skewers, soaked in water for 30 minutes
• Salt and pepper
• Sour cream