Add vinegar, raspberries, lemon juice, and avocado oil to a high-speed blender. Blend until smooth. Add in salt to taste. Feel free to add in a little more vinegar to taste as well. Set aside.
Toss lettuce, fresh mint, berries, and almonds together in a large bowl.
Plate your salad onto chilled plates. Drizzle with raspberry vinaigrette. Top with fresh ground black pepper.