White Pizza Sauce:

• In a small saucepan over medium-low heat, melt the butter. Whisk in the garlic and heat until fragrant, about 1 minute. Whisk in cornstarch a little at a time so you don't get any lumps.
  2 tbsps (28 g) butter, 1 tbsp minced garlic (about 4 cloves), 2 tbsps (1 g) cornstarch
• Pour in half-and-half and whisk until combined. Reduce heat to low and simmer; stirring often, for 3-5 minutes or until sauce is thickened to your liking. (Cook a few more minutes if your sauce is too thin. If your sauce is too thick, add a bit more half-and-half.)
  1 cup (250 ml) half and half
• Turn off heat and add Parmesan cheese. Whisk until melted and smooth.
  1/2 cup (29 g) freshly grated Parmesan cheese
• Stir in Italian seasoning, sea salt, black pepper, oregano and onion powder.
  2 tsps Italian seasoning, 1/2 tsp finely ground sea salt, 1/2 tsp ground black pepper, 1/4 tsp dried oregano leaves, 1/4 tsp onion powder
• Spread on your pizza crust immediately. If you do not plan to use the sauce right away, allow it to cool before placing in an airtight container into the refrigerator.