Cut the avocado in half, remove the pit, and spoon out the avocado pulp.
Place the avocado pulp, the chopped cilantro, jalapeño peppers, green onions, cumin powder, and lime juice in a small food processor or blender. Pulse until the ingredients are crushed and pureed.
Add the yogurt and mix until you have smooth sauce. Add salt to taste.
Serve immediately or refrigerate until ready to use.
Right before serving, garnish the avocado yogurt dip with diced tomato, radish slices, chopped scallions, and cilantro leaves.
Serve the avocado yogurt dip with your choice of fresh veggies and/or crackers.