Blend all ingredients together in a high speed blender until completely smooth, about 1 minute.
Pour into a small saucepan and cook, stirring constantly over medium high heat. After a couple of minutes the mixture will start to look weird, like it’s curdling or separating. This is totally normal, reduce heat to medium and
KEEP stirring so you don’t burn the cheese to the bottom of the pot.
Keep cooking and stirring til really thick (about 2-3 more minutes) and the mixture becomes like a cohesive mass of melted dairy cheese and stretches like in the photo below.
Remove from heat and let cool a bit while you assemble the pizzas.