I use unflavored gelatin sometimes. Family favorite is Pressed Chicken.
Stew a whole chicken & debone. Cut meat in pieces 1” or less, put in large bowl. Save broth. Add poultry seasoning or sage, salt pepper, grated onion to your taste. Put 1 envelope Knox unflavored gelatin in small bowl & add 1/8 cup water, just enough to wet the gelatin. Then add about 1/4 to 1/3 cup hot chicken broth & toss all to make it look shiny. Add bit more hot broth if needed. Press mixture in loaf pan, press down & add wax paper on top then weight down & refrigerate until firm. Untold & slice for sandwiches. Freeze the left over broth for soup some day.