Cheats (Microwave) Cheese Sauce

Two ways to "cheat"...

Cheat #1:
Add 1 cup milk and 1 tbsp flour, mix together
Add cheese and mix
Cook for 2 mins on high, stir
Cook for a further 2 minutes

Cheat #2:
Add 3tbsp melted butter to 3tbsp flour and mix
Add in 1 cup of milk and cheese and stir together
Cook for 1 minute then stir
Cook for a further 1 minute and stir
Cook for a further 1 minute
Once thickened, leave to sit for 3 minutes