Smoked Ham Hock and Lentil Soup

Ingredients

• 2 (10-ounce) smoked ham hocks
• 3 quarts plus 3 cups water, divided
• 1 tablespoon olive oil
• 1 cup chopped Spanish onion
• 1 cup sliced okra
• 1 lemongrass stalk, chopped
• 1 small habanero chile, chopped
• 1 tablespoon chopped ginger
• 2 teaspoons kosher salt
• 2 cups dried red or yellow lentils
• 1/2 cup sliced scallions
• 1 1/2 teaspoons chopped fresh thyme