The batter should be pourable yet not overly runny—adjust with extra milk or water if needed. Resting the batter enhances texture; ensure it is stirred well if rested longer than 30 minutes. Employ a muffin tin rather than a traditional Yorkshire pudding tin to achieve a better rise, and use just enough oil to cover the base of each section. Preheating the oil until smoking is vital for the signature lift. Divide the batter evenly among the tin wells, filling each about halfway. Work quickly when pouring to maintain oven temperature, and position the tray near the top of the oven, allowing space for the puddings to expand. Avoid opening the oven prematurely to prevent collapse. Let the cooked puddings cool in the tin for easier removal; reheat briefly before serving if desired. For a gluten-free version, substitute the plain flour with cornflour—note that additional baking time may be required.