LAVA COOKIES Ingredients: ½ cup (115 g) softened unsalted butter, 1 tsp vanilla extract, 1 tsp oil, ½ cup (100g) Granulated Sugar, 1 pinch salt, 1 large egg, ¼ cup (30 g) cornstarch, 1 ½ cups (190 g) all-purpose flour, 1 cup (175 g) chocolate chips, 6 chocolate truffles* *can replace with Nutella or chocolate