Pull eggs and milk out from fridge; bring 'em to room temperature.
When you're ready to cook, preheat the oven to 425 degrees.
Combine eggs, flour, sugar, and almond extract. You can mix the ingredients in a blender or by hand with a whisk. Either way, mix until smooth.
Add milk to batter. Mix again until fully incorporated.
Once your oven reaches 425 degrees, put the butter in a heavy 10-inch skillet or baking dish and place it in the oven. As soon as the butter has melted (~2 minutes) add the batter to the pan, return pan to the oven, and bake for 20 minutes, until the pancake is puffed and golden.
Pull the pancake out of the oven. Wonder at its puffed glory. Mourn as it deflates. Cheer again when you realize you get to eat it slathered in a dusting of powdered sugar and lemon juice.