1 cup milk
1 tablespoon vegetable oil
1 cup all-purpose flour
1/4 teaspoon salt
Preheat the oven to 450 degrees F. Grease well muffin cups or popover pans.
In a blender container, combine all ingredients. Process a few more seconds, until the mixture is smooth. Pour the batter into prepared muffin cups or popover pans, filling each half-full. Bake for 20 minutes.
Reduce oven temperature to 350 degrees F and bake the popovers until they are golden brown (10 to 15 minutes). Spear each with a sharp knife to let the steam escape. Bake 5 minutes more, and serve.