If you are just pulling your eggs from the fridge, be sure to place eggs in a bowl of hot water for 10 minutes, to bring to room temperature.: The moment you immerse chilled eggs in hot water you will feel the shell warm, and that slight warmth helps the eggs blend smoothly into the batter. You may notice a quieter, silkier whisking rhythm compared with cold eggs , which tend to resist and create tiny curdled bits. This warming step is important because room temperature eggs incorporate air more readily, aiding lift. A common mistake is skipping this step and finding the batter sluggish, which can lead to shorter puddings.
Warm milk in microwave for 30-45 seconds, to bring to room temperature.: Heating the milk briefly brings it close to room temperature, which helps the batter remain cohesive and prevents shocking the room temperature eggs . You will notice the milk feel tepid to the touch when it is right. The slight warmth promotes better emulsification and more steam generation in the oven. Avoid overheating, as hot milk can cook the eggs prematurely and ruin the batter.
In a large bowl using a large whisk, beat the eggs and milk for about 2 minutes; you want to get as much air into this mixture as possible. (You can use a hand mixer for 1 minute.): As you whisk the eggs and milk together you will see the mixture become paler and slightly frothy, with small bubbles gathering on the surface. This aeration is crucial because trapped air expands in the oven and helps the puddings rise. The whisking also creates a smooth texture that avoids lumps later. A common pitfall is underwhisking, which leaves the batter heavy and reduces rise.
Add the salt, and lightly add the flour using a sugar duster or sifter (don't overlook the sifting step – it makes a difference!) Lightly whisk the batter just until no flour clumps appear. Don't over-mix, or puddings will be dense.: Sifting the flour over the wet mix gives an even distribution and prevents lumps that can weigh down the pudding. As you gently whisk, watch for the batter to come together into a silky, slightly viscous liquid. There should be no visible pockets of dry flour . Overmixing at this stage develops gluten, which results in a denser pudding, so stop when smooth. Avoid vigorous mixing that creates a gluey texture.
Set the batter aside, and let it stand for 30 minutes. (You can also put the batter into a pitcher or large glass measuring cup at this point – it makes it easier to pour later on).: Allowing the batter to rest lets the flour hydrate fully, creating a more cohesive structure and producing taller puddings. During this time you may notice small bubbles rise and settle, and the batter's texture will smooth further. Resting also relaxes the gluten slightly, preventing toughness. Do not skip this rest, as immediate baking often yields less height and a gummy interior.
Using a standard muffin tin, add 1/2 TBSP of beef drippings (or canola oil) to each cup. Set aside.: When you portion the hot fat into each cup you will see it pool and reflect the light, and this is the foundation for the crisp base. Enough fat ensures a rapid transfer of heat to the batter, creating steam and lifting the puddings upward. Too little fat can cause uneven browning and sticking, so measure carefully. A frequent error is underfilling the cups with fat, which prevents the trademark crispness.
Move oven rack to lower-middle position. Place large baking sheet on oven rack, and then the oiled muffin tins on top of the baking sheet.: Positioning the tins on a baking sheet helps with even heat distribution and makes it easier to slide the whole assembly in and out. The lower middle part of the oven gives strong bottom heat which aids in a vigorous initial rise. You'll want the pans centered so heat surrounds them evenly. If you put the tins too low or too high you may get uneven lifting or browning.
Preheat oven to 450 degrees (with the pans inside the oven). Once the oven is ready, let it sit for another 5 minutes to make sure the oil gets nice and hot.: Preheating with the pans and fat inside is essential; you should see the fat shimmer or give off a faint wispy smoke when hot. That intense heat triggers instant steam when the batter hits the fat, causing the dramatic rise. Waiting the extra five minutes ensures the oil reaches temperature. The usual mistake is opening the oven too often during preheat, which causes temperature drop and reduces rise.
Working quickly, open the oven and pour the batter into each oiled muffin tin, about 2/3 the way full. Try not to keep the oven door open for long, as you don't want the temperature to drop.: Pouring with a steady hand, aim for uniform fill so each pudding rises evenly; you may hear a quick sizzle as batter hits the hot fat. The batter will spread and settle immediately, and that sizzling sound is a sign the fat is hot enough. Keep the oven door open only briefly to avoid losing heat, which can flatten the puddings. A typical misstep is slow pouring, which reduces the initial lift from the hot fat.
Quickly close the oven door, and let bake for 5 minutes. Keeping the oven door closed (don't peak!), lower the heat down to 375 degrees and bake for another 10-15 minutes, or until a deep golden brown.: During the first five minutes you will notice an aggressive puff as steam inflates the batter, and then continuing at 375 degrees allows the centers to set while the exterior crisps. The color should progress to a deep golden brown, signaling caramelization and a nutty flavor. Resist peeking, as opening the door releases steam and cold air, which can cause collapse. If puddings brown too quickly, your oven may be hotter than its dial indicates.
Remove from muffin tins, and serve immediately.: When you take them out, the puddings will sing with steam and the edges will be crisp while the interiors remain tender. Serving hot preserves the contrast between crunchy outside and soft inside, and they are best enjoyed straight away. If you wait too long they will deflate and lose textural contrast. A helpful trick is to serve as soon as you unmold them so everyone experiences the full effect.