Ingredients

• ¼ cup sweet onion, diced
• 1 serrano pepper, seeded
• 2 medium clove garlic
• 2 Tbsp lime juice
• 2 Tbsp fresh cilantro, chopped
• 1 cup buttermilk
• ½ cup mayonnaise
• ½ cup sour cream
• 1 medium ripe avocado
• 1½ tsp salt
• 1½ tsp ground cumin
• 1 tsp oregano
• 1 tsp palm sugar
• ¼ tsp dark chili powder
• ¼ tsp black pepper

Instructions

• Place the onion, serrano pepper, garlic cloves, lime juice and cilantro into a blender. 
• Pulse until chopped. 
• Add the remaining ingredients.  Pulse until smooth. 
• Add more buttermilk, if desired to thin. 
• Store chilled for several hours before serving. 
• May make up to 3 days in advance, shake well before serving.