Calabacitas con Elote (Zucchini with Corn)

Easy Tip for Getting Corn Off the Cob:
To remove corn kernels from the cob using a bundt pan, stand the shucked corn cob upright, with the tip of cob placed in the center hole of the bundt pan. Holding the cob steady, use a sharp knife and make long downward strokes on the cob, separating the kernels from the cob.

Heat the olive oil in a large skillet over medium-high heat; cook and stir the onion and garlic in the hot oil until fragrant, about 5 minutes. Mix the zucchini and corn into the onion and garlic and cover until zucchini is tender; about 10 minutes. Uncover and stir the suero/buttermilk into the mixture. Season with salt and pepper; stir. Bring to a boil. Reduce heat to low, and simmer. Sprinkle with cheese (optional) to serve.