Heat a large skillet over medium-low heat and add the butter. Take about 1 1/2 to 2 cups of the grilled corn (since I cut it from the cob, I loosely fit it in about 2 cups) and add it to the skillet with the garlic and pepper flakes. Toss well and cook until the corn is warm and the garlic is sautéed, about 2 minutes. Remove the corn and place it in the bowl of a food processor.
Add the ricotta, salt, pepper and juice of two limes to the processor as well. Puree until combined and smooth. Taste and season additionally if needed. I continually scraped down the sides and pureed so the mixture would resemble a smooth hummus. If the dip won’t smooth out easily, add a tablespoon of ice water at a time and blend again.
Scoop the dip into a bowl or deep plate. With it with the leftover grilled corn, a bunch of torn cilantro, the queso fresco and a sprinkle of chili powder. Serve with veggie sticks, chips or pitas.