1. Combine crabmeat and milk in a bowl and soak. Drain and press out excess liquid. Lay crab on a paper towel lined plate and pat dry.
2. Combine the scallions, butter, egg yolk, mayo, hot sauce, and Old Bay. Fold in 3 tbs of the crushed crackers and the crab meat.
3. Form the mixture into 2 large portions. Press the bottom flat and leave the topped domed.
4. Press the crab cakes into the crumbs to coat the top and bottom. Arrange on a plate cover, and place in the fridge.