Using the recipe from seriouseats.com .
Mix equal mass egg, AP flour, and liquid. I used 6 eggs (242g) and Oatley full fat milk, the recipe is actually 3:1 milk:water for the liquid. And 2g / 1/2t salt (whoops, forgot the salt this time but still pretty tasty). Rest overnight.
Pour 2t oil in each well (I use a muffin tin since that's what I have). Preheat tin with oil in the oven until smoking. Pour about 1/4c batter into each well.
Cook 12-15m. (Below, at about 200F interior temperature / 4 minutes.)
Yeah, I was surprised how quickly they got up near 200F and how long they stayed there. I guess all the liquid takes a while to convert to steam.