Do I need to marinate the salmon?
Nope. The glaze works like a quick “paint and bake” sauce. If you have an extra 10 minutes, letting it sit while the oven preheats is nice, but not required.
Can I use skin-on salmon?
Yes. Skin-on fillets are great here. Bake skin-side down. If you want extra crisp skin, pat it very dry and skip glazing the skin side. Note: broiling is mainly for the glaze on top, not for crisping the skin.
What internal temperature should salmon be?
USDA guidance is 145°F, but many home cooks prefer pulling salmon at 125°F to 135°F for a moist, flaky center. The fish will carryover cook a bit after you take it out.
Will the brown sugar burn under the broiler?
It can, which is why we broil for only 1 to 2 minutes and keep a close eye on it. Every broiler has a different attitude. If yours runs hot, place the pan a rack lower.
Can I swap the brown sugar?
Light or dark brown sugar both work. Honey or maple syrup will also glaze nicely, but they behave a bit differently under the broiler and can brown faster.
How do I know when it is done without a thermometer?
Press gently with a fork. Salmon should flake easily and look opaque on the outside, with a slightly translucent, juicy center if you like it medium.