Preheat oven to 450F. Fill a muffin tray with 1 to 1%1⁄2 tsp oil in each spot. Put the tray into the oven for 10 minutes.
Meanwhile, in a large bowl, sift together flour, baking powder and salt until mixed thoroughly.
Using a whisk, mix 3 eggs in a medium bowl, then mix with milk.
Pour the liquids into the dry mixture and whisk together until the batter is smooth with little to no lumps.
Remove the hot muffin tray out of the oven and carefully pour the batter into each spot, filling about % of the way. The batter will sizzle, be careful of hot oil splashes!
Put the muffin tray onto a larger pan (this will catch any excess oil that spills.) Place into oven and let the Yorkshire pudding bake for 12-15 minutes, until golden brown.
Remove from the oven and let it cool for 10 minutes while still in the tray. Serve with gravy and enjoy!
