Authentic Italian Marinara Sauce Recipe with Garlic, Onion and Plum Tomatoes

Ingredients

• 6 large cloves of garlic , minced
• 0.5 cup of extra-virgin olive oil
• 1 medium onion , diced
• 3 (28 oz (794 g)) cans of whole plum tomatoes , hand crushed or blended
• 6 leaves of fresh basil , chopped
• salt , to taste
• 0.5 tsp of crushed red pepper , or to taste