Slow Cooker Spaghetti Bolognese

Bahan-bahan (8 porsi)

• 1 tablespoon olive oil
• 2 onions (finely chopped)
• 4 cloves garlic (minced, or 1 tablespoon minced garlic)
• 2 pounds lean ground beef
• 1/2 cup red wine (or beef broth/stock - optional)
• 56 ounces crushed tomatoes (28-ounce cans)
• 1 cup beef stock
• 6 tablespoons tomato paste
• 1 large carrot (chopped)
• 1 tablespoon stock powder (or crushed beef bouillon)
• 2 -3 teaspoons salt (adjust to your taste)
• 2 teaspoons dried oregano (or 1 teaspoon fresh oregano, finely chopped)
• 2 teaspoons dried basil (or 2 teaspoons fresh basil, finely chopped)
• 1 teaspoon sugar
• 1 pinch cracked pepper (to taste)
• 1/4 cup fresh parsley (chopped)
• 17 ounces spaghetti (dry pasta)