Objective: To mix the ingredients for chocolate chip cookie in a mug

Which of the following solutions is more sound in terms of naive physics reasoning?

Choose your answer from: (A). Add 1 tbsp each of melted butter, brown sugar, white sugar, and 1 egg yolk into the mug. Mix with a spoon and then add 3 tbsp of flour and chocolate chips. Mix again using the spoon.; (B). Add 1 tbsp each of melted butter, brown sugar, white sugar, and 1 egg yolk into the mug. Mix with a spoon and then add 3 tbsp of water and chocolate chips. Mix again using the spoon.;
(A).