Are poblano peppers spicy?
Usually they are mild with a gentle warmth, but heat can vary pepper to pepper. If you are sensitive, taste a tiny piece of the pepper flesh to gauge heat (and avoid the ribs and seeds, which can hold more heat). If it is surprisingly spicy, serve with extra sour cream or keep the sauce on the mild side.
Do I have to peel the poblanos?
I recommend it. The charred skin can be a little tough and distract from the creamy filling. The good news: after steaming in a covered bowl, the skins slide off with your fingers or a paper towel. Try not to rinse the peppers under water, it can wash away that roasty flavor and make them more watery.
What cheese is best for relleno peppers?
For maximum melt, use Oaxaca, Monterey Jack, low-moisture mozzarella, or a mix. A little cheddar is great for flavor, just know that if you use all cheddar the filling can melt a bit oilier and less stretchy than a meltier blend.
Can I add meat?
Absolutely. Brown ground beef, chorizo, or ground turkey with onion and spices, then mix with some cheese and stuff as usual. Keep the filling fairly dry so it does not waterlog the peppers.
Any easy add-ins for the filling?
Yes. A small handful of corn, black beans (well drained), or a spoonful of finely diced onion is great. Keep add-ins modest so the peppers still close easily.
Why are my relleno peppers watery?
Two common culprits: (1) the peppers were not dried after roasting, or (2) the sauce was too thin. Let the roasted peppers rest on paper towels, and simmer the sauce until it lightly coats a spoon before baking.