Preheat your oven to Gas mark 7.
Add around a teaspoon of oil to each of the holes in the muffin tin, we prefer to use Goose Fat.
Place the tin in the oven for 10-15 minutes, until the oil is really hot. It needs to be spitting.
Beat or whisk the eggs with the cornflour in a big mixing bowl. Once thoroughly combined, gradualy add the milk a little at a time. You may want to pour the batter into a jug to make the it easier to add the batter to the tins.
For this bit you need to be quick!! remove the tray from the oven and immediately fill each hole with teh mixture until just under 3/4 full. They should sizzle a little. Remember be quick, get them back in the oven asap.
Place back in the oven for around 25 minutes until golden and rise, DO NOT OPEN THE OVEN DOOR while they are cooking. this will ruin them.
Remove them from the oven and add to your roast dinner.