Preheat the grill to medium high heat (350-400 degrees F).
Prepare the corn for grilling by peeling back the husk (leave it attached at the base) and coating it with salted butter, followed by a pinch of salt. (I found that using my hands for this made it a lot easier.) Pull the husk back over the ear, making sure the corn is completely covered by the husk. Set aside while the grill heats.
Grill the corn, in the husk, for 5 minutes on each side.
Remove the corn from the husk and place back on the grill for another 5-10 minutes, until slightly charred. Be sure to turn the corn throughout the cooking process to let all sides receive the same amount of heat and char.
Place the jalapeno pepper directly on the grill and cook for 5-10 minutes or until it starts to char. The jalapeno should turn a dull green color and the skin will bubble slightly.
Once both the corn and jalapeno are done cooking, remove them from the grill and let them cool completely before cutting.
To make the salsa: In a large bowl, add the chopped Roma tomatoes and chopped red onions. Set aside for now.
Once cooled, cut the corn off the cob and transfer to the bowl that has the roma tomatoes and red onions.
Dice the jalapeno and add to the bowl.
Stir in the lemon juice, cilantro, rice vinegar, olive oil, salt, cumin, garlic powder, and chili powder until thoroughly combined.
Refrigerate for 30-45 minutes or until chilled.
Plate and serve.
Storage You can store this salsa in an airtight container in the refrigerator or the freezer.Tips:
If you do not have a grill, you can either use a grill plate on your stove top to cook the corn and jalapenos. Another option is to oven roast the corn. Make sure to husk your corn, rub it in butter and salt, and wrap each individual piece in aluminum foil. Bake at 425 degrees F for 20-25 minutes, making sure to turn once during the cooking process.
Fresh corn on the cob is best for this recipe, but you can use frozen corn kernels or canned corn instead. Be sure to defrost and drain it prior to use.
It is best to use fresh corn on the cob immediately, especially if you get it from a local farmer. Fresh corn is the sweetest and juiciest when used within the first 1-2 days. The sugars begin converting to starch soon after the corn is harvested. You can store your corn in the refrigerator to stall this process.
The easiest way to cut corn off the cob is to stand it upright on a cutting board and slice down the corn with the knife slightly angled in so you get all of the kernels.
This recipe tastes best when prepared in advance so the flavors have a chance to meld.