This pho-inspired caramelized onion dip elevates the classic party favorite by adding aromatic flavors like cilantro and ginger, inspired by the ingredients used in pho broth.
Heat a large sauté pan over medium heat, add the olive oil and heat through. Add the butter and allow to melt then add the onions.
Sauté until the onions are soft and tender, about 10 minutes, then reduce the heat to medium-low and cook, stirring occasionally, until the onions are uniformly brown and caramelized, about 30 minutes.
Add the ginger and lemongrass and stir to combine, continuing to cook for an additional 1 minute. Remove from heat and let cool.
In a medium bowl stir together the caramelized onion with the sour cream, cilantro, lime zest and onion powder. Season to taste with salt.
Cover the dip and refrigerate for at least 30 minutes to let the flavors come together. Serve with grilled naan bread.
Notes
Caramelize the onions low and slow until they reach a deep golden brown—rushing this step can result in bitter or underdeveloped flavor.