Bring a large pot to a boil, generously salt the water, and cook the orecchiette until al dente.
2 cups (227 grams) dried orecchiette
The easiest way to char the corn is to broil the kernels right under the broiler until browned, stirring once or twice.
1 pound (450 grams) corn kernels
To make the dressing, whisk together the lime juice, mayonnaise, sour cream, garlic, chipotle powder, sugar, salt, and pepper in a small bowl or clean jam jar until smooth. Taste and adjust the seasonings as desired.
2 tablespoons mayonnaise, 2 tablespoons sour cream, 3 tablespoons lime juice, 1 clove garlic, 1 teaspoon chipotle chili powder, ½ teaspoon sugar, ½ teaspoon kosher salt, ¼ teaspoon black pepper
When the pasta is al dente, drain it and let it cool slightly. While still warm, toss the pasta with about half of the chipotle dressing in large bowl until it is lightly coated. Let cool completely.
When the pasta and corn have cooled to warm room temperature, add the corn kernels, cotija, sliced green onions to the bowl with the pasta and toss. Add the remaining dressing and toss until evenly coated. Garnish with cilantro, if desired.
¾ cup (170 grams) cotija , 2 green onions, ¼ cup chopped cilantro