Here’s the sneaky truth: every time you drop a cold ring of dough into the hot oil, the temperature of the whole batch plummets. It’s like throwing a snowball into a hot tub. Your oil might have been a perfect 365°F, but after two doughnuts, it’s suddenly 335°F.
This is why cookbooks tell you to work in small batches. Don’t crowd the pan! Give your doughnuts room to swim. And between each batch, give the oil a moment to climb back up to that happy 350-375°F range. Patience here is everything.
Think of your stovetop knob not as an "on" switch, but as a conductor's baton. You’ll nudge it up when the temperature falls, and nudge it down when it gets too frisky. You and the oil are now a team.
