Santa Monica Street Tacos

• 6 6-inch white corn tortillas (you can sub yellow corn if you can't find white corn)
• 1 pound skirt steak trimmed of fat and sliced into thin strips
• ½ teaspoon salt
• ¼ teaspoon cayenne pepper
• ½ teaspoon garlic powder
• ½ teaspoon minced garlic 
• 1 teaspoon oil
• 1 cup diced onion
• ½ cup cilantro leaves roughly chopped
• 2 cups thinly sliced red cabbage

Cilantro Lime Vinaigrette

• ¾ cup cilantro leaves
• Juice of 2 limes
• ⅓ cup oil
• 4 teaspoons minced garlic 
• ¼ cup white vinegar
• 4 teaspoons sugar
• ¼ cup milk
• ½ cup sour cream