In a mixing bowl, whisk your eggs, flour, salt until smooth and add your milk a little by little til it is fully incorporated and smooth.
Cover with a plastic wrap and place in the fridge for at least 3 hours or overnight.
When ready to bake, preheat the oven to 450 degrees.
Place a teaspoon of tallow into each muffin tin and place these in the oven for 5-6 minutes until the muffin tin is hot and tallow has melted.
Remove the tin from the oven and pour batter in each about 1/2 - 3/4 full.
Bake for 11-13 minutes until puffed up, golden brown and risen.
Remove from the oven and serve immediately with your roast dinner.
To serve:
Vegetables of choice like boiled peas, sauteed rapini, cooked carrots etc
Slice your roast and serve it with gravy, potatoes, yorkshire pudding and veggies of choice.