I love Don Pablos and so does my family. I just hate spending $4.00 for a bowl of their Chili Con Queso that may family gobbles up in 2 minutes. Here is a recipe that tastes exactly like theirs and cost about 1/3 as much to make!
In small skillet over medium heat, melt butter. Sauté the onion in the butter for 10 minutes, uncovered. Add the chili powder, tomatoes, jalapeños and simmer, stirring frequently, until slightly thickened. Add the cheese, stirring constantly. Cook, stirring constantly, until the cheese melts. Add the sour cream and cook for 1 minute more. Serve with soft or crispy tortillas.