Truffled French Onion Dip

Caramelize the onions:

1. Carmelize the onions: Heat the butter and olive oil in a large pan over medium-low heat.
2. Add the finely chopped onions and cook, stirring occasionally, for 25-30 minutes, until the onions are soft, golden, and caramelized. Be patient to get that deep, sweet flavor. If the onions start to brown too quickly, reduce the heat.
3. Set the caramelized onions aside to cool.
4. In a medium mixing bowl, combine the sour cream and mayonnaise. Stir until smooth and well-blended.
5. Add the truffle salt, garlic powder, black pepper, and dried thyme (if using) to the sour cream and mayo mixture. Taste and adjust the seasoning, adding more truffle salt if you want a more pronounced flavor.
6. Add the cooled caramelized onions to the mixture and stir until fully incorporated.
7. If you like a bit of freshness, stir in a teaspoon of lemon juice to balance the richness of the dip.
8. Cover the dip and refrigerate it for at least 1 hour before serving. This allows the flavors to meld together.
9. Serve with your favorite chips, crackers, or fresh vegetables for dipping. Enjoy the rich, indulgent flavor with the added luxury of truffle!