In a 350-degree oven, toast hazelnuts on a baking sheet until golden brown and aromatic.
In a frying pan, melt butter and add shrimp. Sauté till done, being careful to not overcook. Let shrimp and hazelnuts completely cool. Assemble as seen in the photos.
Lemon Vinaigrette Recipe
Combine all ingredients (except for the oil and thyme) into a blender or bowl using an immersion blender. While blending ingredients, add the oil very slowly which will cause the oil to emulsify. Then fold the thyme into the vinaigrette by hand. Do not blend.