Suppose How to bake a delicious chocolate cake from scratch<br>Preheat the oven to 350°F and grease a round cake pan. In a mixing bowl, cream together butter and sugar until light and fluffy. Add eggs one at a time, mixing well after each addition. Sift together flour, cocoa powder, baking powder, and salt. Gradually add dry ingredients to the wet ingredients, alternating with milk. Pour batter into the cake pan and bake for 30-35 minutes.
Can we infer that "Adding salt to the batter is optional"? Yes, no, or maybe?