Place oil in an 8-inch skillet, and turn heat to medium-high. When it’s hot, a minute or two later, add onion, salt and sugar. Cook, shaking pan occasionally, until onion browns, about 10 minutes.
Pour onion and oil into a fine strainer; reserve oil in refrigerator for another use. Stir onion into sour cream. If time allows, cover and refrigerate for 24 hours. Serve with potato chips or raw vegetables.
Mothers Secret Recipes of Comfort Food & Culinary Inspiration from an Organic and Allergen-free Approach