Heat the vegetable broth in a small saucepan and keep it warm over low heat.
Blanch the wild garlic leaves in a pot of boiling water for 30 seconds, then immediately transfer to an ice bath. Drain and blend the leaves with 1/4 cup of the warm broth until a smooth green puree forms. Set aside.
Heat the olive oil in a large, heavy-bottomed pan or Dutch oven over medium heat. Add the finely chopped onion and sauté for 4 to 5 minutes until translucent and soft.
Add the Arborio rice to the pan and toast for 1 to 2 minutes, stirring constantly until the edges of the rice grains become slightly translucent.
Pour in the dry white wine and cook, stirring frequently, until the liquid is fully absorbed.
Add the warm vegetable broth one ladle at a time, stirring constantly.
Stir in the sweet peas and the reserved wild garlic puree during the last 3 minutes of cooking. Cook until the rice is al dente and the risotto has a creamy consistency.
Remove the pan from the heat. Stir in the grated Parmesan cheese, butter, and black pepper until fully melted and glossy.
Garnish with fresh chives and serve immediately in warmed bowls.