If you are making the crackers, you can make those up to a few days in advance if you store in an airtight container. In a medium size mixing bowl, stir together the flour and grated cheese. Grate the cold butter into the bowl and use a fork to mash until the mixture is like small pebbles (similar to making pie crust).
In a small bowl, stir together the milk and red food dye. Pour the milk into the mixing bowl, with the flour/butter mixture. Stir until a dough ball begins to form. You may need to use your (clean) hands to mix some. Roll out and use a crab shaped cookie cutter to cut the crackers (or you can do a simple shape like squares or triangles if you prefer).
For the crab cakes, finely chop the jalapeño (removing the seeds) and celery. In a large mixing bowl, flake the imitation crab meat after draining. Then add the jalapeño, celery, 2 tablespoons of chives, dijon, seafood seasoning, and eggs. Stir well. Then stir in the crushed potato chips.