In a small skillet over low heat, dry-roast the 1 ounce raw peanuts until golden, 3 to 4 minutes.
☞ TESTER TIP: If you have dry-roasted peanuts on hand, you can skip the toasting step.
Dump the roasted peanuts, 1 small (5 1/2 ounces) red or yellow onion, 2 garlic cloves, 2 green chiles, 2 cups (1 1/2 oz) fresh cilantro leaves, 1 cup (3/4 oz) fresh mint leaves, 1 teaspoon granulated sugar, 1/2 teaspoon salt, juice of 1/2 lime (about 1 tablespoon), and 5 tablespoons water into a blender or food processor, and blitz until smooth, about 90 seconds.
The chutney will keep in an airtight container in the refrigerator for 4 to 5 days.