3/4 c. crabmeat (about 6 oz.)
1/2 c. mayonnaise
2 tbsp. finely chopped onion
1 tsp. prepared mustard
1 tsp. lemon juice
12 crisp crackers or Melba toast

Drain crabmeat and combine well with all ingredients, except crackers or Melba toast.

Mound crab mixture on crackers or toast. Arrange 6 crackers in a circle on a glass or paper plate. Microwave, uncovered, for 1 1/2 to 2 minutes, or until puffed and very hot. Repeat procedure with remaining 6 crackers.