Preheat the oven to the highest temp possible (mine goes up to 550°F) and place the pizza stone in the oven if you have one (if you want to use a sheet pan or the air fryer, find the instructions in the notes section below)
Make the alfredo sauce: In a saucepan, over medium heat, melt the butter then add the garlic. Cook for 30 seconds then add the flour and cook for 1 minute. Gradually add the milk and cream and whisk. The sauce will start to thicken. Stir in the parmesan, mozzarella, and seasonings (salt, pepper, and nutmeg). Remove from heat, fold in the chicken and allow to cool down before spreading on the pizza dough.
Sprinkle the pizza peel with semolina to prevent the dough from sticking, then shape/stretch your dough gently with your hands into a 10 or 12-inch circle (don’t use a rolling pin). Before adding any toppings, make sure that the pizza can slide off onto the pizza stone easily. If not, just lift it up gently and sprinkle with more semolina. Don’t push the dough too hard, and start working it from the center. Leave the edges puffed up for a great pizza shape and bubbles.
Add half of the alfredo and chicken sauce to the pizza, brush the edges of the pizza with olive oil and bake in the preheated oven for 4-5 minutes, then switch on the broiler and bake for 3-5 more minutes but keep an eye on it as the top bubbles and browns.
Remove from the oven, allow to cool for 10 minutes (so the sauce will set and won’t be runny). Garnish with fresh basil, slice and serve.