Mojo sauces vary across cultures but tend to share in common olive oil, citrus juice, herbs, garlic, and various spices. This one will appeal to lovers of cumin. For a treat, buy fresh cumin and grind it yourself in a spice grinder or mortar and pestle.
Tip: If you choose to use bamboo skewers, soak them in water for 10 minutes before threading with meat and vegetables.