Ingredient info: Thai red curry paste and unsweetened coconut milk can be found at many supermarkets and at Southeast Asian and Indian markets.
Directions
Heat oil in saucepan over medium heat. Add next 3 ingredients; sauté 2 minutes. Add curry paste; stir 1 minute. Whisk in peanut butter, then next 5 ingredients; bring to boil. Reduce heat to medium; simmer until reduced to 2 cups, whisking and adding broth as needed, about 5 minutes. Remove from heat; cool. Stir in lime juice. DO AHEAD: Can be made 3 days ahead. Cover; chill. Rewarm, thinning with broth.