Step 1: Place a large saucepan over medium heat and add the olive oil. Once warm, stir in the minced garlic and cook for about 30 seconds to 1 minute, stirring continuously until it becomes aromatic. Be careful not to let the garlic brown.
Step 2: Pour the white wine into the pan and bring it to a gentle simmer. Let it cook for 3 to 4 minutes so the alcohol can evaporate and the wine can reduce slightly, enhancing its flavor.
Step 3: Add the crushed San Marzano tomatoes, brown sugar, and salt. Stir everything together until the ingredients are fully incorporated and the mixture is smooth and even.
Step 4: Lower the heat and allow the sauce to simmer uncovered for 25 to 30 minutes. Stir from time to time to prevent sticking and to help the flavors blend while the sauce gradually thickens.
Step 5: During the last 5 minutes of cooking, add the fresh basil. Stir it into the sauce so its fresh, fragrant flavor is evenly distributed.
Step 6: Taste the sauce and adjust the seasoning as needed. If you prefer a smoother texture, blend the sauce with an immersion blender until it reaches your desired consistency. Serve warm, or let it cool completely before storing for later use.