Add jalapeno (top cut off, cored, and de seeded), garlic cloves, cilantro, sugar, salt, cumin powder, lemon juice and 1/2 of the yogurt to a blender jar and blend.
Add remaining yogurt and blend. Taste and adjust consistency of chutney desired. For more of a sauce add 1 tbsp of water.
Notes
Greek yogurt provides a thicker chutney like consistency. If you'd like a thinner consistency add 1 tbsp of water.Whole milk yogurt provides a bit of a thinner consistency.