2 tbsp. butter
1/4 c. flour
1 egg
1/4 c. shredded process Swiss cheese
2 c. finely chopped, cooked or canned chicken
1/4 c. finely chopped celery
2 tbsp. lemon juice
1/4 c. mayonnaise OR salad dressing

Melt butter in 1/4 cup boiling water. Add flour and dash of salt; stir vigorously. Cook and stir until mixture forms a ball that doesn't separate. Remove from heat and cool slightly. Add egg and beat vigorously until smooth. Stir in cheese. Drop onto greased baking sheet, using 1 level teaspoon for each puff. Bake at 400 degrees about 20 minutes. Remove puffs from oven; cool and split. Combine remaining ingredients, 1/2 teaspoon salt; dash of pepper. Fill each puff with 2 teaspoon mixture.