Cumin-Scented Sweet Potato Hash

Ingredients

• 1 tablespoon olive oil
• 1 tablespoon butter
• 4 sweet potatoes small, peeled and cut into 1/4-inch dice, about 4 cups
• 1 onion medium, halved and cut crosswise into thin slices
• 1/2 teaspoon ground cumin
• 1/2 teaspoon smoked paprika
• 1 pinch crushed red pepper
• kosher salt to taste
• 2 tablespoons chopped parsley fresh, optional