spiced homemade hazelnut butter – 1 c (135g) whole hazelnut – 1 tbsp (13g) sugar – 1 tsp ground cinnamon – ½ tsp vanilla extract – ¼ tsp salt hazelnut butter blossom – 1 ⅔ c (200g) all purpose flour – 1 tsp (6g) baking soda – 1 tsp instant espresso powder – ½ tsp salt – ½ c (113g) unsalted butter, room temperature – ½ c (135g) homemade hazelnut butter – ½ c (100g) granulated sugar, plus more for rolling – ½ c (100g) light brown sugar – 1 large egg, room temperature – 1 tsp (5ml) vanilla extract – 58-60 Hershey's chocolate kisse