
Melt butter in a medium skillet over medium heat. Once melted, add jalapeño and onions and cook until they are softened and translucent, about 5 minutes.
Add corn kernels and garlic and stir to combine. Cook for 5 minute.
Add chili powder, ancho chili powder, paprika, salt, and cayenne pepper and gently mix together until all the vegetables are coated.
Reduce the heat to low and add the cream cheese. Stir continuously until the cream cheese has melted and is fully incorporated.
Add the lime juice and sour cream and gently stir to combine.
Take off the heat and transfer the dip into a serving dish. Garnish with chopped cilantro and cotija cheese. Serve warm with tortilla chips.