Why did my popovers not puff up?
The most common issues are a pan that was not hot enough, ingredients that were too cold, overmixing, or opening the oven early. Preheat the popover pan in the oven and do not peek for at least the first 20 minutes.
Can I make these in a muffin tin?
Yes. Use a standard 12-cup muffin tin and fill each cup about halfway. The rise will be a bit shorter and wider than classic popovers, but the texture is still great. Start checking a few minutes early at the lower temperature, since smaller cups can finish faster.
Do I need a blender?
Nope. A whisk works perfectly. The goal is a smooth batter with no big flour pockets. A few tiny lumps are fine and will relax as the batter rests.
Why are my popovers eggy inside?
That usually means they needed a little more time to set, or your oven runs cool. Leave them in a few extra minutes at the lower finishing temperature. You can also pierce them near the end to let steam escape.
Why did my popovers deflate?
Usually they were underbaked or pulled too early. Bake until they are deeply golden and feel light for their size, then vent them (a small slit) and let them sit a minute or two so steam can escape without collapsing the walls.
Can I make the batter ahead?
Yes. You can make the batter up to overnight and refrigerate. For the biggest rise, same-day batter is best. If chilled, let it sit on the counter for 20 to 30 minutes and whisk again before baking.
How do I make them sweet?
Increase sugar to 2 tablespoons and add 1 teaspoon vanilla. Serve with berries, jam, or a dusting of powdered sugar.