Start by heating olive oil in a medium saucepan over medium heat. Once the oil is warm but not smoking, add the minced garlic. Sauté for about 1–2 minutes, stirring frequently until the garlic is fragrant and golden—be careful not to burn it, as burnt garlic can turn bitter and overpower the sauce.

Next, stir in the crushed tomatoes or tomato puree. Add the oregano, basil, onion powder, and optional red pepper flakes. If you’re using tomato paste, mix it in now to enhance the thickness and richness of the sauce. Stir well to combine all ingredients and bring the mixture to a gentle simmer.

Let the sauce simmer uncovered for 15–20 minutes, stirring occasionally. This allows the flavors to meld together beautifully while slightly reducing the sauce for a thicker texture. Season with salt and pepper to taste, and if desired, stir in a tablespoon or two of grated parmesan for an extra savory note.

If you prefer a smooth sauce, use an immersion blender directly in the pot or transfer the mixture to a standard blender and pulse until smooth. Once your garlic pizza sauce has reached the desired consistency, remove it from heat and let it cool slightly before using.