Heat the cream cheese, butter and sour cream in a pan, stirring often, until the mixture becomes extra creamy. Stir in the jalapeño peppers, then swirl in the cheeses a little bit at a time, constantly stirring, until the cheeses melt completely through. Stir in the black beans, chili powder, garlic powder, cumin and a bit of salt and pepper. Simmer for 5 minutes to let the flavors blend.
Serve immediately with Doritos® Nacho Cheese. ENJOY!