Okay, the real name of the recipe is Butterflied Party Franks, but TexasBestGrok may do a Heinlein themed Carnival, and I wanted to be prepared.
1 1/2 lbs. frankfurters 1 (10 oz.) jar cranberry jelly 4 tbsp. prepared mustard or Dijon mustard
Cut each frank crosswise into 4 sections. Cut each section in half lengthwise to make 8 pieces. Split ends of each piece within a 1/4 inch of the center; set aside. Combine jelly and mustard in 2-quart micro-type casserole. Use half- power cycle and cook 4 minutes, or until jelly is melted, stirring after 2 minutes. Add franks, stir to coat. Cover with waxed paper. Use high-cycle and cook 4 minutes, or until hot. Stir and let stand, covered, 3 minutes.
I didn't have cranberry jelly, so I used cranberry honey mustard, and added less Dijon. It was quite tasty!