Whisk eggs and milk until thoroughly mixed.
Add dash of salt, whisk thoroughly.
Sift flour in and whisk thoroughly - NO LUMPS!
Set batter aside for 30+ minutes.
Place approximately 1 tsp of vegetable oil (bacon fat, lard, etc.) in bottom of each cup and place in oven.
Heat oven to 450°F.
Remove the tin from the oven (it should be very hot!)
Place equal amounts of batter in each cup (should get a bit of a sizzle from the hot fat/oil).
Bake for 20-25 minutes until fluffy and brown.