In a medium bowl, cream together the butter and brown sugar until creamy and homogenous. Add the eggs, vanilla extract, ground cinnamon, nutmeg, cloves, ginger, and salt to the creamed butter and sugar. Stir in evaporated milk, then pour the mixture into the riced sweet potatoes in the large bowl. Whisk together or stir with rubber baking spatula until well incorporated and creamy.
1 stick unsalted butter, 1 cup light brown sugar, 2 large eggs, 1 tbsp vanilla extract, 2 tsp ground cinnamon, 1 tsp ground ginger, ¼ tsp ground nutmeg, ½ tsp ground cloves, ½ tsp kosher salt, ¾ cup evaporated milk