Prep Time: 5
Cook Time: 25
Serves: Makes: 4-1/2 cups
Heat oil in a medium saucepan over medium heat. Add onion; cook 10 minutes or until very tender, stirring occasionally. Stir in tomatoes, sugar and chili powder; simmer uncovered 10 to 12 minutes or until thickened, stirring occasionally.
Transfer to a shallow bowl; stir in 1 cup cheese and top with remaining 3/4 cup cheese. Serve with chips.