I have been making this recipe forever now. Its my go-to recipe for a quick and easy hot breakfast.
In stand mixer cream butter and sugar until fluffy. Add eggs, milk, oil and vanilla; mix on low for about 1 minute.
Remove bowl from mixer and fold in frozen blueberries. (To help keep blueberries from falling to the bottom, sprinkle them with a couple tablespoons of flour prior to adding into batter.)