Ethiopian Spiced Lentil and Tomato Stew

Ingredients

• 1 tablespoon olive oil
• 1 small yellow onion, chopped
• 2 cloves garlic, minced
• 1 tablespoon fresh ginger, grated
• 1 teaspoon ground cumin
• 1/2 teaspoon chili powder
• 1/2 teaspoon turmeric powder
• 1/4 teaspoon cayenne pepper
• 1 (15-ounce) can lentils, rinsed and drained
• 1 (14.5-ounce) can diced tomatoes, undrained
• 1 (8-ounce) can tomato puree
• 1 cup vegetable broth
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper
• 1 cup white basmati rice, uncooked
• 2 cups water, for rice